Holechek, Jerry L. Range management : principles and practices - Englewood Cliffs, N.J. : Prentice-Hall, 1989 - 501 p. : ilus. ; gráfs. 57-51 LCCN: 5407 Subjects--Topical Terms: Pastizales--Manejo. Dewey Class. No.: 633.2 / H66