Snaydon, R. W. Managed grasslands : analytical studies - Amsterdam : Elsevier, 1987 - 285 p. ; ilus. : gráfs - Ecosystems of the world ; 17B . - Ecosystems of the world ; 17B . D50-40 LCCN: 3472 Subjects--Topical Terms: Pastizales--Ecología.Pastizales--Manejo.Pastos. Dewey Class. No.: 633.2 / S53