TY  - BOOK
AU  - Simmonds,N.W.
AU  - Smartt,J.
TI  - Principles of crop improvement
SN  - 0632041919
U1  - 631.52 21
PY  - 1999///
CY  - Oxford, Malden, MA, USA
PB  - Blackwell Science
KW  - Crop improvement
N1  - Includes bibliographical references
ER  -