APA (7th ed.) Citation

Symposium on Modern Advances in Microwave Techniques New York. (1955). Proceedings. [publisher not identified].

Chicago Style (17th ed.) Citation

Symposium on Modern Advances in Microwave Techniques New York. Proceedings. New York?: [publisher not identified], 1955.

MLA (9th ed.) Citation

Symposium on Modern Advances in Microwave Techniques New York. Proceedings. [publisher not identified], 1955.