APA (7th ed.) Citation

Attfield, H. H. D., & Maspero, M. F. (1981). How to make fertilizer. VITA Publications Service.

Chicago Style (17th ed.) Citation

Attfield, Harlan H. D., and Marina F. Maspero. How to Make Fertilizer. Arlington, Virginia: VITA Publications Service, 1981.

MLA (9th ed.) Citation

Attfield, Harlan H. D., and Marina F. Maspero. How to Make Fertilizer. VITA Publications Service, 1981.