The first edition of Light And Color has the letters ABCDE on page 160. © 1971 by Western Publishing Company, Inc. Published by Golden Press, New York, N.Y. No cover price. The number on the spine is 24020. Note: I also have the exact same book with a cover price of $1.25. Listed as a Golden Science Guide.
The only cover change to Light And Color is the large (5 ¼ by 7 ¾ inch) hardcover. Dated 1971 and no price listed. ISBN number on the back cover is 0-307-63540-6. The letters CDE appear on page 160. I have yet to find this cover variant in a softcover. But one may exist. (shown below the softcover)
A Spanish version of Light And Color titled Luz Y Color is shown last. Number 134 in the series. © 1971 by Western Publishing Inc., y por licencia para la lengua española, 1976, por Ediciones Daimon, Manuel Tamayo, Barcelona (Espana). Printed in Spain. Graficas Roman, S.A.- Casa Oliva 82-88- Barcelona-5. ISBN: 84-231-0134-7.
No revised edition exists that I am aware of. Out of print. And fairly scarce.