Παραπομπή APA

Postal ,Paul M. (1968). Aspects of Phonological theory. Haiper & Row.

Παραπομπή Chicago Style

Postal ,Paul M. Aspects of Phonological Theory. Haiper & Row London: Haiper & Row, 1968.

Παραπομπή MLA

Postal ,Paul M. Aspects of Phonological Theory. Haiper & Row, 1968.