TY - BOOK AU - McDonald, M. B. AU - Copeland, Lawrence TI - Seed production: principles and practices SN - 9780412075513 U1 - 631.521 PY - 1997/// CY - Dordrecht, Netherlands PB - Spriger Science Business media , (originally published by Chapman and Hall, New York) KW - Seed technology N1 - Includes bibliographical references and index ER -