APA (7th ed.) Citation

Ahrens, D., Ellison, T., & Sterling, R. (1981). Earth sheltered homes: Plans and designs. Van Nostrand Reinhold Co..

Chicago Style (17th ed.) Citation

Ahrens, Donna, Tom Ellison, and Raymond Sterling. Earth Sheltered Homes: Plans and Designs. New York, N.Y.: Van Nostrand Reinhold Co., 1981.

MLA (9th ed.) Citation

Ahrens, Donna, et al. Earth Sheltered Homes: Plans and Designs. Van Nostrand Reinhold Co., 1981.