APA ציטוט

Fenchel, T. (1987). Ecology-potentials and limitations. Ecology Institute.

Chicago Style (17th ed.) Citation

Fenchel, Tom. Ecology-potentials and Limitations. Berlín: Ecology Institute, 1987.

ציטוט MLA

Fenchel, Tom. Ecology-potentials and Limitations. Ecology Institute, 1987.