TY  - BOOK
AU  - Loomis,R.S.
AU  - Connor,D.J.
TI  - Crop ecology: productivity and management in agricultural systems 
SN  - 052138379X
AV  - S589.7 .L66 1992
U1  - 631.1 20
PY  - 1992///
CY  - New York
PB  - Cambridge University Press
KW  - Agricultural ecology
KW  - Agricultural systems
N1  - Includes bibliographical references and index
ER  -