00341nam a2200097Ia 4500008004100000020001500041082002100056100001800077245007600095260007200171220204s9999    xx            000 0 und d  a818511644X  a631.86(058)bTAn  aTandon, H L S 0aOrganic fertiliser and biofertilisers : A techno-commercial source book  aNew DelhibFertiliser Development & Consultation Organisationc1999