TY  - BOOK
AU  - Norman,Arthur Geoffrey
ED  - American Society of Agronomy.
TI  - Advances in agronomy
CY  - New York, London
PB  - Academic Press.
KW  - Agronomy
KW  - Research
N1  - Includes bibliogr. references; V. 12 (1960, xi,464 p. : ill.)
ER  -