TY  - BOOK
AU  - Heitefuss, Rudolph
AU  - Welch, Jacquie.
TI  - Crop and plant protection : : the practical foundations 
SN  - 074580523X (Hb.)
AV  - SB950 .H44 1989
PY  - 1989///
CY  - Chichester, West Sussex : 
PB  - Ellis Horwood, 
KW  - Plants, Protection of
N1  - 	Includes bibliographical references and index
ER  -