00306nam a2200109Ia 450000500170000000800410001708200120005810000160007024500670008626000350015330000080018820260224041034.0260224s9999||||xx |||||||||||||| ||und||  a630 HOW  aHoward, A.  4aThe waste products of agriculture : their utilization as humus  aIndia : Agrobios (India)c2004  a158