TY  - BOOK
AU  - Norman, M. J. T. 
ED  - Pearson, C. J. 
ED  - Searle, P. G. E.
TI  - The ecology of tropical food crops
SN  - 0521240824
U1  - 631.0157452623 
PY  - 1984///
CY  - New York :  
PB  - Cambridge University Press
ER  -