TY  - BOOK
AU  - Cock,James
AU  - Graham,Michael.
AU  - MacIntyre,Reginald
TI  - Proc. of the fourth symposium of the Internation society for tropical root crops held at CIAT,Cali, Columbia, 1-7 Aug., 1976
U1  - 633.4 
PY  - 1977///
CY  - Ottawa
PB  - International Development Research Centre.
KW  - Root and Tuber Crops
ER  -