TY  - BOOK
AU  - Norman, A.G. (Ed.)
AU  - Norman, A.G. (Ed.)
TI  - Advances in Agronomy (Prepared under the Auspices of the American Society of Agronomy)
U1  - 631.05/NOR 
PY  - 1950///
CY  - New York
PB  - Academic Press Inc.
ER  -