TY  - BOOK
AU  - Coursey, Donald Gilbert.
TI  - Yams: an account of the nature, origins, cultivation and utilisa tion of the useful members of the Dioscoreaceae 
U1  - 633.49 COU 
PY  - 1967///
CY  - London
PB  - Longmans
KW  - Yams
N1  - Includes bibliography
ER  -