APA (7th ed.) Citation

Polk, M. W., & Ervin, R. T. (1995). Windmills or solar watering systems. [College of Agricultural Sciences and Natural Resources].

Chicago Style (17th ed.) Citation

Polk, M. Wade, and R. Terry Ervin. Windmills or Solar Watering Systems. [Lubbock, Tex.]: [College of Agricultural Sciences and Natural Resources], 1995.

MLA (9th ed.) Citation

Polk, M. Wade, and R. Terry Ervin. Windmills or Solar Watering Systems. [College of Agricultural Sciences and Natural Resources], 1995.