TY  - BOOK
AU  - R.S. Dunham
TI  - Introduction to agronomy
U1  - 630 
PY  - 1957///
CY  - New York
PB  - Holt Rinehart & Winson
N1  - R.S. Dunham: Introduction to agronomy.  New York.  Holt Rinehart & Winson, 1957.--(630DUN)
ER  -