APA aipamena

Griggs, R. A. (2009). 2nd ed. New York: Worth.

Chicago Style aipamena

Griggs, Richard A. 2nd Ed. New York: Worth, 2009.

MLA aipamena

Griggs, Richard A. 2nd Ed. New York: Worth, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.