APA Edition Citation

Rehder, H., & Twaddell, F. (1963). German conversation course.

Chicago Edition Citation

Rehder, Helmut, and Freeman Twaddell. German Conversation Course. 1963.

MLA Edition Citation

Rehder, Helmut, and Freeman Twaddell. German Conversation Course. 1963.

Warning: These citations may not always be 100% accurate.