APA (7th ed.) Citation

(1973). ALGOL 60: Übungen. Geest & Portig.

Chicago Style (17th ed.) Citation

ALGOL 60: Übungen. Leipzig: Geest & Portig, 1973.

MLA (9th ed.) Citation

ALGOL 60: Übungen. Geest & Portig, 1973.

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