Association for Student Teaching. (1951). Off-campus student teaching.
Citazione stile Chigago Style (17a edizione)Association for Student Teaching. Off-campus Student Teaching. Lock Haven, Pa, 1951.
Citatione MLA (9a ed.)Association for Student Teaching. Off-campus Student Teaching. 1951.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.