APA (7th ed.) Citation

Smith, N., Kittridge, C. W., & Hill, R. C. (1978). "Project Retrotech": Energy conservation for existing residences. American Society of Agricultural Engineers.

Chicago Style (17th ed.) Citation

Smith, Norman, Charles W. Kittridge, and Richard C. Hill. "Project Retrotech": Energy Conservation for Existing Residences. St. Joseph, Mich.: American Society of Agricultural Engineers, 1978.

MLA (9th ed.) Citation

Smith, Norman, et al. "Project Retrotech": Energy Conservation for Existing Residences. American Society of Agricultural Engineers, 1978.