APA (7th ed.) Citation

Riggio, R. F., Bomar, G. W., & Larkin, T. J. (1987). Texas drought: Its recent history, 1931-1985. Texas Water Commission.

Chicago Style (17th ed.) Citation

Riggio, Robert F., George W. Bomar, and T. J. Larkin. Texas Drought: Its Recent History, 1931-1985. Austin, Tex.: Texas Water Commission, 1987.

MLA (9th ed.) Citation

Riggio, Robert F., et al. Texas Drought: Its Recent History, 1931-1985. Texas Water Commission, 1987.