Morley, J. (1972). Improving aural comprehension: Student's workbook. The University of Michigan Press.
Citazione stile Chigago Style (17a edizione)Morley, Joan. Improving Aural Comprehension: Student's Workbook. The University of Michigan Press, 1972.
Citatione MLA (9a ed.)Morley, Joan. Improving Aural Comprehension: Student's Workbook. The University of Michigan Press, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.