UPDATE: A printer has reportedly pulled out from publishing a book on same sex marriage written by a Toowoomba doctor because of its controversial subject matter.
Television host Andrew Bolt, speaking on Sky News, said the printer had previously agreed to print the book, which argues against same sex marriage.
The book, named "Stealing From a Child: The Injustice of Marriage Equality" was written by Dr David van Gend and is due to be officially launched at a function in Brisbane tonight.
Gay and lesbian groups are planning to protest the book, arguing it is inflammatory and denigrates gay people.
The book has the support of the Australian Marriage Forum, of which Dr van Gend is president, and former Toowoomba councillor Lyle Shelton from the Australian Christian Lobby.
Mr Bolt said the book had been pulled by the printer just as the press was about to start rolling.
He quoted senior management as saying the book's "subject matter and content" were behind the decision.
"This closing down of debate is getting really too much," Mr Bolt said.
The book is still available online.
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Gay rights proponent Gary Dodkins is planning to picket the official launch of the book tonight at Maylon College in Gaythorne.
The launch starts at 6pm and will feature George Christensen as a special guest.
Mr Dodkins slated the protest as a "peaceful vigil" but added "far left" groups and "militant unions" would be in attendance.
He said gays were becoming so frustrated about the debate over marriage equality they were "willing to be arrested" and would likely infiltrate the event.
Mr Dodkins is expecting hundreds of people to attend the rally.
"People have said to me: 'Most of us have been bashed at some point in time, and I'm willing to be bashed again this time if something will come of it', which shows the level of sentiment that is out there," Mr Dodkins said.
"The fuse has been lit and things will get ugly in the next couple of months."
The Chronicle understands that as yet no permit has been issued for the rally, which will take place on private property.
Dr van Gend was targeted last year by a graffiti attack for his stance on gay marriage.
EARLIER: The gay and lesbian community in Brisbane is preparing to rally against the launch of a new book by Toowoomba doctor David van Gend.
The book, named "Stealing From a Child: The Injustice of Marriage Equality" will be launched with special guest George Christensen at Maylon College in Gaythorne from 6pm tomorrow.
Former Toowoomba councillor Lyle Shelton from the Australian Christian Lobby wrote: "If you think same-sex 'marriage' won't affect your family or freedom you haven't read this book."
Gary Dodkins is organising what he called a "peaceful vigil style protest" outside the event and is urging protesters to bring candles, rainbow flags and banners supporting marriage equality.
He said the gay community was becoming increasingly frustrated with the debate around same-sex marriage.
Mr Dodkins said members of the far left and militant unionists were expected to attend the protest, which is being held in the context of the government's push to hold a plebiscite on same-sex marriage.
It comes after an Australian Christian Lobby event was cancelled after a satirist Simon Hunt, sometimes known as Pauline Pantsdown, led a social media campaign against it. The Queensland Government also recently lowered the age of consensual anal sex to 16.
Dr van Gend was contacted for comment.