00400    a2200109   4500082001600000100002100016245006900037260007900106300001800185650007700203650001000280  a639.75bMEH  aMehrotra, V. S.   aVermiculture binstructional-cum-practical manual class ix and x  aNew DelhibNational council of education research and trainingc1997g1997  avi,31p.c24cm  aHarvest and culture of invertebrates other than mollusks and crustaceans  aWorms