APA (7th ed.) Citation

Hansen, V. E., & Israelsen, O. W. (1980). Irrigation principles and practices (4th ed.). National Book Store.

Chicago Style (17th ed.) Citation

Hansen, Vaughn E., and Orson Winso Israelsen. Irrigation Principles and Practices. 4th ed. Manila: National Book Store, 1980.

MLA (9th ed.) Citation

Hansen, Vaughn E., and Orson Winso Israelsen. Irrigation Principles and Practices. 4th ed. National Book Store, 1980.