APA (7th ed.) Citation

American National Standards Institute & Computer and Business Equipment Manufacturers Association. (1980). American national standard programing language APT. American National Standards Institute.

Chicago Style (17th ed.) Citation

American National Standards Institute and Computer and Business Equipment Manufacturers Association. American National Standard Programing Language APT. New York: American National Standards Institute, 1980.

MLA (8th ed.) Citation

American National Standards Institute and Computer and Business Equipment Manufacturers Association. American National Standard Programing Language APT. American National Standards Institute, 1980.