TY  - BOOK
AU  - CHIARAPPA, L
TI  - Crop loss assessment methods with supplement: FAO manual on the evaluation and prevention of losses by pests, disease and weeds
U1  - 338.15 C33C 
PY  - 1971///
PB  - Farnham Royal, U. K.
KW  - AGRICULTURE -- ECONOMIC ASPECTS
KW  - CROP YIELDS
ER  -