APA Zitierstil

American telephone and Telegraph company. (1961). Switching systems. New York: American telephone and Telegraph company.

Chicago Zitierstil

American telephone and Telegraph company. Switching Systems. New York: American telephone and Telegraph company, 1961.

MLA Zitierstil

American telephone and Telegraph company. Switching Systems. New York: American telephone and Telegraph company, 1961.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.