Cita APA (7th ed.)

Agarwal KC. (2001). Fundamentals of environmental biology. Nidhi.

Cita Chicago (17th ed.)

Agarwal KC. Fundamentals of Environmental Biology. Bikaner: Nidhi, 2001.

Cita MLA (9th ed.)

Agarwal KC. Fundamentals of Environmental Biology. Nidhi, 2001.