Proceedings of the International Drainage Workshop 16-20 May 1978 Wageningen, The Netherlands
Volume 2 Proceedings of the ASCE Irrigation and Drainage Division Specialty Conference on Water Management for Irrigation and Drainage July 20-22, 1977 Reno, Nevada
Volume 1 Proceedings of the ASCE Irrigation and Drainage Division Specialty Conference on Water Management for Irrigation and Drainage July 20-22, 1977 Reno, Nevada