APA-referens

Swarup, r., Mishra,s n, & Jauhari, v. a. (1992). Encyclopedia of ecology, environment & pollution control (in 20 volumes). Mittal.

Chicago-stil citat

Swarup, r., Mishra,s n, och v a. Jauhari. Encyclopedia of Ecology, Environment & Pollution Control (in 20 Volumes). New delhi: Mittal, 1992.

MLA-referens

Swarup, r., et al. Encyclopedia of Ecology, Environment & Pollution Control (in 20 Volumes). Mittal, 1992.