Talk:Flood of Blood/@comment-35982639-20180919074422/@comment-35982639-20180924201903

also i googled it

"The International Standard Book Number (ISBN) is a unique numeric commercial book identifier. ... An ISBN is assigned to each edition and variation (except reprintings) of a book. For example, an e-book, a paperback and a hardcover edition of the same book would each have a different ISBN."