TY  - BOOK
AU  - Langer, R. H. M
AU  - Hill, G. D
TI  - Agricultural plants
SN  - 9780521405638
SN  - 91002246
U1  - 631 LAN 
PY  - 1991///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Crops
N1  - Includes bibliographical references and indexes
ER  -