Cita APA (7th ed.)

Purohit, S. S. (2007). Ecology, environment and pollution. Agrobios.

Cita Chicago (17th ed.)

Purohit, S. S. Ecology, Environment and Pollution. Jodhpur: Agrobios, 2007.

Cita MLA (9th ed.)

Purohit, S. S. Ecology, Environment and Pollution. Agrobios, 2007.