00624 a2200169 4500 9780309148962 630.973 NAT 28622 49862 National research council Toward sustainable agricultural systems in the 21st century committee on twenty-first century systems agriculture board on agriculture and nutural resources division on earth and life studies Washington The National Academic Press 2010 2010 xxviii,570p. 25cm Agricultural systems Sustainability Sustainable agriculture L 55233 55233 0 0 0 0 LEN MKDL MKDL LEN 2012-12-05 1 630.973NAT 66072 2018-11-15 00:00:00 2018-11-07 0.00 2016-10-31 L 0 0 0 0 SRC MKDL MKDL REF 2014-03-12 0 630.973NAT 66807 2016-02-05 00:00:00 0.00 2016-10-31 SR 0 0 0 0 LEN MKDL MKDL LEN 2014-03-12 0 630.973NAT 66808 2014-03-12 00:00:00 0.00 2016-10-31 L