APA (7th ed.) Citation

Time-Life Books. (1981). Adding on (Revised 1981.). Time-Life Books.

Chicago Style (17th ed.) Citation

Time-Life Books. Adding on. Revised 1981. Alexandria, Va.: Time-Life Books, 1981.

MLA (9th ed.) Citation

Time-Life Books. Adding on. Revised 1981. Time-Life Books, 1981.

Warning: These citations may not always be 100% accurate.