00481nam a2200145Ia 4500008004100000082001700041100002300058245005000081260003200131300001000163650003800173942000700211952010000218999001700318140113s9999    xx            000 0 und d  a620.91:63 M0  a" Pimentel, David"  aHandbook of energy utilization in agriculture  b"Florida : CRC press, 1980"  a475p.  aEnergy utilization in agriculture  cBK  00104070aKYMbKYMd2014-01-13l0o620.91:63 M0pKBK2705r2014-01-13 00:00:00w2014-01-13yBK  c63538d63538