APA aipamena

Cheronis, N. D. The study of the physical world. [Boston],1958: Houghton Mifflin.

Chicago Style aipamena

Cheronis, Nicholas D. The Study of the Physical World. [Boston],1958: Houghton Mifflin.

MLA aipamena

Cheronis, Nicholas D. The Study of the Physical World. [Boston],1958: Houghton Mifflin.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.