APA (7th ed.) Citation

Orton, E., Stoldt, P. H., Hunt, B., Jeffries, M., & Musman, R. (1975). How do you do: An English audio-lingual and audio-visual course. Ferdinand Schöningh.

Chicago Style (17th ed.) Citation

Orton, Eric, Peter H. Stoldt, Barry Hunt, Mary Jeffries, and Richard Musman. How Do You Do: An English Audio-lingual and Audio-visual Course. Paderborn: Ferdinand Schöningh, 1975.

MLA (9th ed.) Citation

Orton, Eric, et al. How Do You Do: An English Audio-lingual and Audio-visual Course. Ferdinand Schöningh, 1975.