Pasture production in acid soils of the tropics proceedings of a seminar held at CIAT, Calif. Colombia 17-21 April 1978 / 
edited by Pedro A. Sanchez and Luis E. Tergas. 
 - Calif. :  CIAT,  1978. 
 - ix, 488 p. ;  24 cm. 
<br/><br/> Open access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pastures ecology.<br/>Grasses.