00509nam a22001457a 4500 140718b xxu||||| |||| 00| 0 eng d 9781606928646 Cir. 631.584 Or8 c2009 2095 Nelson, Michael Organic farming : methods, economics and structure/ Nelson, Michael New York : Nova Science Publishers, Inc., c2009. xii, 283p. : ill. Organic farming Humus Soil microbiology ecology Natural foods ddc CIR 2770 2770 0 0 ddc 0 0 CIR SPMT-CAS SPMT-CAS 2014-07-18 0 Cir/631.584/Or8/c2009 005437 2014-07-18 00:00:00 2014-07-18 BK