Ecological principles of agriculture by Laura E Powers and Robert McSorley McSorley Robert - Powers Laura E; McSorley Robert (New York Delmar, 2000)
Appendix I-IV, 398-415p; Index 417-433p; ^n23/CSL/CARB/OTSG/2001-2002/804^d2001-03-30^mPurchase; ; 2001-2002/23^b2001-07-05^c231^d2001-06-29^eRs.1,370.85^fBiotek Book Company; ; 2002-01-23^bSB^c2002-10-03^dRPS
Keywords: Ecology; Agriculture