TY  - BOOK
AU  - Roberts,R.C.
ED  - United States
ED  - Puerto Rico.
TI  - Puerto Rico
T2  - Serie : 1936-
PY  - 0000///19-
CY  - Washington, D.C.
PB  - Department of Agriculture, Bureau of Plant Industry
KW  - Soil surveys
KW  - Puerto Rico
KW  - Local
KW  - Agriculture
N1  - Published with the cooperation of University of Puerto Rico Agricultural Experiment Station; At head of title : Soil Survey; Cover title; Includes explanatory notes; Bibliographical references included in Literature cited (p. 492-495)
ER  -