TY  - BOOK
AU  - Powers Laura E
AU  -  McSorley Robert
TI  - Ecological principles of agriculture
SN  - 0766806537 (pbk)
U1  - J:95, P0 
PY  - 2000///
CY  - New York    
PB  -  Delmar        
KW  -  Ecology
KW  - Agriculture
N1  - Includes bibliographical references; Appendix I-IV, 398-415p; Index 417-433p
ER  -