TY  - BOOK
AU  - Frear,Donald E.H.
TI  - Agricultural chemistry: a reference text
AV  - S585 F84
PY  - 1951///c1950
CY  - New York
PB  - Van Nostrand
KW  - Química agrícola
N1  - Contenido: v. 1. Principles of agricultural chemistry.- v. 2. Practical applications of agricultural chemistry
ER  -