TY  - BOOK
AU  - JAMES COCK
TI  - PROCEDINGS OF THE FOURTH SYMPOSIUMOF THE INTERNATIONAL SOCIETY FOR TROPICAL ROOT CROPS
SN  - 0889361150
U1  - R633.4C644P 
PY  - 1977///
CY  - CANADA
PB  - INTERNATIONAL DEVELOPMENT RESEARCH CENTRE
KW  - PROCEDINGS OF THE FOURTH SYMPOSIUMOF THE INTERNATIONAL SOCIETY FOR TROPICAL ROOT CROPS
ER  -