APA stil citiranja

Likens, G. E. (1992). The ecosystem approach: The ecosystem approach : its use and abuse. Oldendorf: Ecology Institute.

Chicago stil citiranja

Likens, Gene E. The ecosystem approach: The ecosystem approach : its use and abuse. Oldendorf: Ecology Institute, 1992.

MLA stil citiranja

Likens, Gene E. The ecosystem approach: The ecosystem approach : its use and abuse. Oldendorf: Ecology Institute, 1992.