Drosdoff, Matthew Diversity of soil in the tropics : proceedings of a symposium - Madison, Wis. : American Society of Agronomy, 1978 - 119 p. : ilus. ; gráfs. - ASA special publication ; 34 . - ASA special publication ; 34 . LCCN: 59580 Subjects--Topical Terms: Suelos tropicales.Suelos--Composición. Dewey Class. No.: 631.4913 / D7