The first edition of Cacti has the letters ABCDEFG on page 160. Copyright © 1974 by Western Publishing Company, Inc. Published by Golden Press, New York, N.Y. Cover price is $1.95. The number on the spine is 24357. Listed as a Golden Guide. But the inside front cover lists it as a Golden Nature Guide.
This title also exists in a large (5 ¼ by 7 ¾ inch) hardcover. The number on the back cover is 0-64357-3.
No cover variant or revised edition exists. Out of print.