Thread: Survey of R&TVS
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Old 29th Jul 2007, 5:16 pm   #9
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Default Re: Survey of R&TVS

ISBNs (International Standard Book Numbers) might be useful, as I believe these identifty a book uniquely. There are certainly different ISBN numbers for hard and soft cover versions of the same book. Probably for each edition and reprint too. Of course early books won't have them. They were introduced in 1970.
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