APA
M G Chitkara, . (1998). Encyclopaedia of Ecology, Environment and Pollution : vol.IX : the wild life alongwith the wildlife (protection) Act, 1972 .-81-7024-889-2. APH, New delhi: .
Chicago
M G Chitkara, . 1998. Encyclopaedia of Ecology, Environment and Pollution : vol.IX : the wild life alongwith the wildlife (protection) Act, 1972 .-81-7024-889-2. APH, New delhi: .
Harvard
M G Chitkara, . (1998). Encyclopaedia of Ecology, Environment and Pollution : vol.IX : the wild life alongwith the wildlife (protection) Act, 1972 .-81-7024-889-2. APH, New delhi: .
MLA
M G Chitkara, . Encyclopaedia of Ecology, Environment and Pollution : vol.IX : the wild life alongwith the wildlife (protection) Act, 1972 .-81-7024-889-2. APH, New delhi: . 1998.