Chitkara, M. (1998). Encyclopaedia of ecology, environment and pollution: Vol-ix the wildlife alongwith the wildlife (protection)act, 1972. APH Publishing.
Styl ChicagoChitkara, M.G. Encyclopaedia of Ecology, Environment and Pollution: Vol-ix the Wildlife Alongwith the Wildlife (protection)act, 1972. New Delhi: APH Publishing, 1998.
Citace podle MLAChitkara, M.G. Encyclopaedia of Ecology, Environment and Pollution: Vol-ix the Wildlife Alongwith the Wildlife (protection)act, 1972. APH Publishing, 1998.
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