APA način citiranja

Ramakrishnan, P. S. (2001). Ecology and sustainable development. NBT.

Čikaški stil citiranja

Ramakrishnan, P. S. Ecology and Sustainable Development. New Delhi: NBT, 2001.

MLA način citiranja

Ramakrishnan, P. S. Ecology and Sustainable Development. NBT, 2001.