APA (7th ed.) Citation

Time-Life Books. (1990). Secrets of the alchemists. Time-Life Books.

Chicago Style (17th ed.) Citation

Time-Life Books. Secrets of the Alchemists. Alexandria, Va: Time-Life Books, 1990.

MLA (9th ed.) Citation

Time-Life Books. Secrets of the Alchemists. Time-Life Books, 1990.