APA aipamena

Langan, J. (2001). Sentence skills with readings (2nd ed.). Boston: McGraw-Hill.

Chicago Style aipamena

Langan, John. Sentence Skills With Readings. 2nd ed. Boston: McGraw-Hill, 2001.

MLA aipamena

Langan, John. Sentence Skills With Readings. 2nd ed. Boston: McGraw-Hill, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.