
: The International Standard Book Number (ISBN) is a unique numeric commercial book identifier that is either 10 or 13 digit in length.
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The International Standard Book Number (ISBN) is a unique numeric commercial book identifier that is either 10 or 13 digit in length.
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More posts by @Phylliss

: What does the v5.0 in the name of an e-book file stand for? I have seen various e-books on the Internet that have a (v5.0) in the name e.g. Charles Darwin - On the Origin of Species (v5.0).epub
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: What is the formula for converting a 10 digit ISBN to a 13 digit ISBN? I didn't see this question here yet so I thought I would ask if someone has the formula for converting a 10 digit
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