APA aipamena

JAMES TREFIL. (2001). The sciences: An integrated approach. New York: John Wiley and Sons.

Chicago Style aipamena

JAMES TREFIL. The Sciences: An Integrated Approach. New York: John Wiley and Sons, 2001.

MLA aipamena

JAMES TREFIL. The Sciences: An Integrated Approach. New York: John Wiley and Sons, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.