TY  - BOOK
AU  - Norman, A.G. ed.
TI  - Advances in agronomy
U1  - 631 J3.5,J4.6 
PY  - 1953///
CY  - New York
PB  - Academic
KW  - A.G.Norman, ed.
KW  - Agronomy,Advances
ER  -