Citazione Stile APA (7a Edizione)

Gopal, B., & Wetzel, R. G. (1995). Limnology in developing countries (1a. ed.). International Association for Limnology.

Citazione stile Chigago Style (17a edizione)

Gopal, Brij, e Robert G. Wetzel. Limnology in Developing Countries. 1a. ed. Nueva Delhi: International Association for Limnology, 1995.

Citatione MLA (9a ed.)

Gopal, Brij, e Robert G. Wetzel. Limnology in Developing Countries. 1a. ed. International Association for Limnology, 1995.