TY  - BOOK
AU  - Yepsen,Roger B.ed
ED  - Organic gardening and farming.
TI  - Organic plant protection: a comprehensive reference on.. 
SN  - 0878571108
PY  - 1976///
CY  - Emmaus
PB  - Rodale
KW  - Plants, Protection of
KW  - Organic gardening
KW  - Garden pests
N1  - Includes bib. and index; Open access
ER  -