APA ציטוט

Delobeau, F. (1971). The environment of the earth. Springer-Verlag.

Chicago Style (17th ed.) Citation

Delobeau, Francis. The Environment of the Earth. Berlin: Springer-Verlag, 1971.

ציטוט MLA

Delobeau, Francis. The Environment of the Earth. Springer-Verlag, 1971.