"Though credited to Al Kilgore, research has shown that artists Fred Fredericks, Jerry Robinson and Mel Crawford, likely contributed artwork to stories written by Jack Mendelsohn, Dave Berg and others"--T.p. verso.
"Originally published by Gold Key as Bullwinkle issues #1-4"--T.p. verso.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Rocky & Bullwinkle classics. Volume 1, Star billing by Al Kilgore. ISBN 9781613779149. Published by IDW. Publication and catalogue information, links to buy online and reader comments.
