APA (7th ed.) Citation

Sargent, F. (1974). Human ecology. North-Holland Publ. [u.a.].

Chicago Style (17th ed.) Citation

Sargent, Frederick. Human Ecology. Amsterdam: North-Holland Publ. [u.a.], 1974.

MLA (9th ed.) Citation

Sargent, Frederick. Human Ecology. North-Holland Publ. [u.a.], 1974.