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.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.