na INLIS000000000025563 20220530023201 220530 g 0 dut 0010-1218007401 631.67 631.67 INT v INTERNATIONAL INSTITUTE FOR LAND RECLAMATION AND IMPROVEMENT Veldboek voor land en waterdekeskundigen / International Institute for Land Reclamation and Improvement Wageningen : IILRI, 1972 671 p. : ill. ; 30 cm. IRRIGATION SOILS WATER MANAGEMENT 1599/73