Citação norma APA

R. Hay, D. (1988). Planning now for Irrigation and Drainage in the 21st century. American society of Civil Engineers.

Citação norma Chicago

R. Hay, Delynn. Planning Now for Irrigation and Drainage in the 21st Century. New York: American society of Civil Engineers, 1988.

Citação norma MLA

R. Hay, Delynn. Planning Now for Irrigation and Drainage in the 21st Century. American society of Civil Engineers, 1988.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.