APA (7th ed.) Citation

Berulfsen, B., & Boardman, P. (1964). Elementary Norwegian: Draft of an audio-lingual method. University of Oslo International Summer School.

Chicago Style (17th ed.) Citation

Berulfsen, Bjarne, and Philip Boardman. Elementary Norwegian: Draft of an Audio-lingual Method. Oslo: University of Oslo International Summer School, 1964.

MLA (9th ed.) Citation

Berulfsen, Bjarne, and Philip Boardman. Elementary Norwegian: Draft of an Audio-lingual Method. University of Oslo International Summer School, 1964.