Παραπομπή APA

Arvind Kumar. (2002). Ecology and conservation of lakes, reservoirs and rivers. 2 Vols. ABD Publishers.

Παραπομπή Chicago Style

Arvind Kumar. Ecology and Conservation of Lakes, Reservoirs and Rivers. 2 Vols. Jaipur: ABD Publishers, 2002.

Παραπομπή MLA

Arvind Kumar. Ecology and Conservation of Lakes, Reservoirs and Rivers. 2 Vols. ABD Publishers, 2002.