Methuselah's Children

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Overview:

Title: Methuselah's Children
Author: Robert A. Heinlein
Year: Unknown
Publisher: Signet
Price: $1.25
Pages: 160
Binding: Paperback
Type: Novel
Title Reference: Methuselah's Children
Notes:
18th printing.
The ISFDB record for the 10th printing, which is the same price/etc. as this is dated 1975-08-00 and says "Info from Locus #190 (June 30, 1976)."
The cover artist is not credited but is signed "Szafran"