APA (7th ed.) Citation

(1969). Contributions to extension theory of topological structures: Proceedings of the symposium held in Berlin, August 14 - 19, 1967. Dt. Verl. der Wiss.

Chicago Style (17th ed.) Citation

Contributions to Extension Theory of Topological Structures: Proceedings of the Symposium Held in Berlin, August 14 - 19, 1967. Berlin: Dt. Verl. der Wiss, 1969.

MLA (9th ed.) Citation

Contributions to Extension Theory of Topological Structures: Proceedings of the Symposium Held in Berlin, August 14 - 19, 1967. Dt. Verl. der Wiss, 1969.