TY  - BOOK
AU  - Hawkes,J.G.
TI  - The diversity of crop plants
SN  - 067421286X
AV  - SB185.75 .H38 1983
U1  - 631.5/2 
PY  - 1983///
CY  - Cambridge, Mass.
PB  - Harvard University Press
KW  - Field crops
KW  - Varieties
KW  - Evolution
KW  - Germplasm resources
N1  - "Based on the John M. Prather lectures in biology ... Harvard University ... April 1977"--P. vi; Includes index
ER  -