TY - BOOK ED - Unesco. ED - United Nations Environment Programme. ED - Food and Agriculture Organization of the United Nations. TI - Tropical grazing land ecosystems: a state-of-knowledge report T2 - Natural resources research ; 16 SN - 9231016113 U1 - 574.52643 19 PY - 1979/// CY - Paris PB - Unesco KW - Rangelands KW - Tropics KW - Range ecology KW - Range management KW - Grazing KW - Human ecology N1 - Includes bibliographies ER -