TY  - BOOK
AU  - Connor, David J
AU  - Loomis, Robert S.
AU  - Cassman, Kenneth G.
TI  - Crop ecology: productivity and management in agricultural systems 
SN  - 9780521744034 (Pbk.)
AV  - S589.7 .C66 2011
PY  - 2011///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Agricultural ecology
KW  - Agricultural systems
KW  - Soils
N1  - Rev. ed. of : Crop ecology / R. S. Loomis, D. J. Connor. 1992; Includes bibliographical references and index
ER  -