APA (7th ed.) Citation

Viktor, W. (1969). Marx und Engels. Kinderbuchverlag.

Chicago Style (17th ed.) Citation

Viktor, Walther. Marx Und Engels. Berlin: Kinderbuchverlag, 1969.

MLA (8th ed.) Citation

Viktor, Walther. Marx Und Engels. Kinderbuchverlag, 1969.

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