APA (7th ed.) Citation

(1981). Semigroups: Proceedings of a conference held at Oberwolfach, Germany December 16 - 21, 1978. Springer.

Chicago Style (17th ed.) Citation

Semigroups: Proceedings of a Conference Held at Oberwolfach, Germany December 16 - 21, 1978. Berlin [u.a.]: Springer, 1981.

MLA (9th ed.) Citation

Semigroups: Proceedings of a Conference Held at Oberwolfach, Germany December 16 - 21, 1978. Springer, 1981.