Notes:
SBN 345-01974-1-295. Library of Congress catalog #68-28025. 1st printing: March 1970; 2nd printing: June 1972
Ballantine published the 2nd and 3rd editions of this book. The first edition was by Viking; it's listed separately. The Ballantine editions have a 2.95 USD cover price.
An expanded edition was published in 1988 by Simon & Schuster.