Re: Survey of R&TVS
Having spoken to Helen, the situation re ISBN is as follows;
In 1970 the system was introduced as SBN (Standard Book Number) and later in 1971 or 1972 was adopted internationally as ISBN.
The ISBN number identifies a particular volume in a series and an edition of that volume (ie a first edition and second edition would have a different ISBN and a hardback a different number from the paperback edition and so on).
The Library of Congress Record number identifies the record card for a title. This explains why the early volumes have the same LofC record number. Thet would locate the card for the title and subsequent year volumes would appear as sub-sets of the same record number.
To quote Helen "I've never understood the US classification system, it's even more complicated than Dewey."
So there you have it!
Regards,
__________________
Brian
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