Forth annual report : coordinated irigation and water management studies (1983-1984) / Soils and Irrigation Division, Bangladesh Agricultural Research Council. -- compiled and edited by N. A. Akhand, C. Garces, Kh. A. Haq. Bangladesh Agricultural Research Council. Akhand, N. A. Garces, C. Haq, Kh. A. Water conservation. 631.706 BAF Includes bibliographical references. Dhaka : Bangladesh Agricultural Research Council, 1986. 1986. 1986 Text xiv, 140 p. : eng BARC Soils & Irrigation Publication, no. 21