TY  - GEN
AU  - Simmonds, N.W.,
TI  - Principles of Crop Improvement
SN  - 0582446309 (paperback)
AV  - SB106.I47 S56
PY  - 1979///
CY  - Singapore
PB  - Longman Scientific & Technical
KW  - Crop improvement
N1  - Includes bibliographical references and indexes
ER  -