APA (7th ed.) Zitazioa

Harper, D. M. (1992). Eutrophication of freshwaters: Principles, problems and restoration. Chapman and Hall.

Chicago Style (17th ed.) Zitazioa

Harper, David M. Eutrophication of Freshwaters: Principles, Problems and Restoration. Londres: Chapman and Hall, 1992.

MLA (9th ed.) Zitazioa

Harper, David M. Eutrophication of Freshwaters: Principles, Problems and Restoration. Chapman and Hall, 1992.