Παραπομπή APA

Hay, D. R. (1988). Planning now for irrigation and drainage in the 21st century: Proceedings of a Conference (Lincoln, Nebraska, July 18-21, 1988) / ; edited by DeLynn R. Ray. New York, NY: American Society of Civil Engineers.

Παραπομπή Chicago Style

Hay, DeLynn R. Planning Now for Irrigation and Drainage in the 21st Century: Proceedings of a Conference (Lincoln, Nebraska, July 18-21, 1988) / ; Edited By DeLynn R. Ray. New York, NY: American Society of Civil Engineers, 1988.

Παραπομπή MLA

Hay, DeLynn R. Planning Now for Irrigation and Drainage in the 21st Century: Proceedings of a Conference (Lincoln, Nebraska, July 18-21, 1988) / ; Edited By DeLynn R. Ray. New York, NY: American Society of Civil Engineers, 1988.

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