The first printing of Whales and Other Marine Mammals has the letters ABCDEF on page 160. © Copyright 1990 by Western Publishing Company, Inc. Illustrations © 1990 Barbara J. Hoopes Ambler. Published by Golden Press, New York, N.Y. No cover price. ISBN on the back cover is 0-307-24075-4. Listed as a Golden Guide.
No cover variant or revised edition exists. Still in print by St. Martin's Press.