APA (7th ed.) Citation

American Telephone and Telegraph Company. Engineering Department. (1963). Engineering economy (2d. ed.). American Telephone and Telegraph Co..

Chicago Style (17th ed.) Citation

American Telephone and Telegraph Company. Engineering Department. Engineering Economy. 2d. ed. [New York?]: American Telephone and Telegraph Co., 1963.

MLA (9th ed.) Citation

American Telephone and Telegraph Company. Engineering Department. Engineering Economy. 2d. ed. American Telephone and Telegraph Co., 1963.