TY  - BOOK
AU  - McDonald, Miller B.
AU  - Copeland, Lawrence R.
TI  - Seed production: principles and practices 
SN  - 0-412-07551-2
AV  - SB117 .M33 1997
PY  - 1997///
CY  - New York
PB  - Chapman & Hall
KW  - Seed technology
N1  - Includes bibliographical references and index
ER  -