APA-Zitierstil (7. Ausg.)

Langdon, D. G. (1978). The audio-workbook (1. pr.). Educational Technology Publications.

Chicago-Zitierstil (17. Ausg.)

Langdon, Danny G. The Audio-workbook. 1. pr. Englewood Cliffs, N.J: Educational Technology Publications, 1978.

MLA-Zitierstil (9. Ausg.)

Langdon, Danny G. The Audio-workbook. 1. pr. Educational Technology Publications, 1978.