Bhattacharyya,P, & Kumar,D. (2004). Vermiculture Technology. National Biofertiliser Development Centre.
Chicago Style aipamenaBhattacharyya,P, and Kumar,D. Vermiculture Technology. Ghaziabad: National Biofertiliser Development Centre, 2004.
MLA aipamenaBhattacharyya,P, and Kumar,D. Vermiculture Technology. National Biofertiliser Development Centre, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.