APA
Chitkara MG, . (1998). Encyclopaedia of Ecology, Environment and Pollution Vol 6 : Science, Technology and Environment. NEW DELHI: APH PUBLISHING HOUSE.
Chicago
Chitkara MG, . 1998. Encyclopaedia of Ecology, Environment and Pollution Vol 6 : Science, Technology and Environment. NEW DELHI: APH PUBLISHING HOUSE.
Harvard
Chitkara MG, . (1998). Encyclopaedia of Ecology, Environment and Pollution Vol 6 : Science, Technology and Environment. NEW DELHI: APH PUBLISHING HOUSE.
MLA
Chitkara MG, . Encyclopaedia of Ecology, Environment and Pollution Vol 6 : Science, Technology and Environment. NEW DELHI: APH PUBLISHING HOUSE. 1998.
TextPublication details: NEW DELHI 1998 APH PUBLISHING HOUSEUniform titles: 
Book
