At 2024-01-06T08:52:48-0600, Will Senn wrote:
> The ISBN Al's got is the same one I have for vol 1, but for volume
> two, he lists 0-03-061742-X, whereas mine is 0-03-061743-X,

This sounds like a misprint; the last element of an ISBN is a check
digit, so any change to a single earlier numeral should also change the
check digit (where in old ISBNs--"ISBN-10"--before the invariant "978-"
prefix of ISBN-13, "X" counted as a numeral).

https://en.wikipedia.org/wiki/ISBN#ISBN-10_check_digit_calculation

Regards,
Branden