APA Цитирование

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

Chicago-стиль цитирования

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

MLA-цитирование

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

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.