APA (7th ed.) Citation

Winkler, J., Schulz, M., & Rudolph, S. (1973). ALGOL 60-Übungen. Geest & Portig.

Chicago Style (17th ed.) Citation

Winkler, Jürgen, Michael Schulz, and Stefan Rudolph. ALGOL 60-Übungen. Leipzig: Geest & Portig, 1973.

MLA (9th ed.) Citation

Winkler, Jürgen, et al. ALGOL 60-Übungen. Geest & Portig, 1973.