TY  - BOOK
AU  - Yepsen, Roger B., Jr.
TI  - Organic plant protection: : a comprehensive reference on controlling insects and diseases..
U1  - 632.96 
PY  - 1976///
CY  - Emmaus, Pa.
PB  - Rodale
KW  - Control biológico de plagas
KW  - Plantas
KW  - Resistencia a plagas
ER  -