Cita APA (7th ed.)

Singh, A. (2003). Encyclopedia of teaching of environmental sciences, Vol. 2. Anmol.

Cita Chicago (17th ed.)

Singh, A.K. Encyclopedia of Teaching of Environmental Sciences, Vol. 2. NewDelhi: Anmol, 2003.

Cita MLA (9th ed.)

Singh, A.K. Encyclopedia of Teaching of Environmental Sciences, Vol. 2. Anmol, 2003.