APA (7th ed.) Citation

Klatt, E., Roy, D., Messinger, H., & Klatt, G. (1970). Langenscheidt's standard dictionary of the English and German languages (6th edition by Dietrich Roy.). Langenscheidt.

Chicago Style (17th ed.) Citation

Klatt, Edmund, Dietrich Roy, Heinz Messinger, and Gisela Klatt. Langenscheidt's Standard Dictionary of the English and German Languages. 6th edition by Dietrich Roy. Berlin: Langenscheidt, 1970.

MLA (9th ed.) Citation

Klatt, Edmund, et al. Langenscheidt's Standard Dictionary of the English and German Languages. 6th edition by Dietrich Roy. Langenscheidt, 1970.