R K Bhatnagar R K Palta
Earthworm(vermiculture and vermi-composting) - I - Ludhiana Kalyani 1996 - 106
8170969938
origin and evolution
distribution
food and feeding habits
general body structure
role of earthworm
631.875 bha/ea
Earthworm(vermiculture and vermi-composting) - I - Ludhiana Kalyani 1996 - 106
8170969938
origin and evolution
distribution
food and feeding habits
general body structure
role of earthworm
631.875 bha/ea