" 

 ::::::The phrase ""independent third-party source"" refers to the author of the material. Bowker didn't write the material, they just issued an ISBN. They did not write, edit, or vet the material in the book. Read the damn page about reliable source. You're clearly not an idiot, but you seem to be pretending to be one. This conversation is over. The book isn't even listed in Worldcat.   "