APA (7th ed.) Citation

(1980). Portable software: Tagung 1/1980 d. German Chapter of the ACM am 18. 1. 1980 in Erlangen. Teubner.

Chicago Style (17th ed.) Citation

Portable Software: Tagung 1/1980 D. German Chapter of the ACM Am 18. 1. 1980 in Erlangen. Stuttgart: Teubner, 1980.

MLA (9th ed.) Citation

Portable Software: Tagung 1/1980 D. German Chapter of the ACM Am 18. 1. 1980 in Erlangen. Teubner, 1980.