Παραπομπή σε μορφή APA (7η εκδ.)

Halpern, A., & Zwicky, A. M. (1996). Approaching second: Second position clitics and related phenomena. Center for the Study of Language and Information.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Halpern, Aaron, και Arnold M. Zwicky. Approaching Second: Second Position Clitics and Related Phenomena. Stanford, California: Center for the Study of Language and Information, 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Halpern, Aaron, και Arnold M. Zwicky. Approaching Second: Second Position Clitics and Related Phenomena. Center for the Study of Language and Information, 1996.