Citazione Stile APA (7a Edizione)

Postlethwait, S. (1969). The audio-tutorial approach to learning: Independent study and integrated experiences. Burgess.

Citazione stile Chigago Style (17a edizione)

Postlethwait, S.N. The Audio-tutorial Approach to Learning: Independent Study and Integrated Experiences. Minneapolis, MN: Burgess, 1969.

Citatione MLA (9a ed.)

Postlethwait, S.N. The Audio-tutorial Approach to Learning: Independent Study and Integrated Experiences. Burgess, 1969.