APA (7th ed.) Citation

American National Standards Institute & National Safety Council. (1972). American national standard specifications for accident prevention signs. American National Standards Institute.

Chicago Style (17th ed.) Citation

American National Standards Institute and National Safety Council. American National Standard Specifications for Accident Prevention Signs. New York, N.Y.: American National Standards Institute, 1972.

MLA (9th ed.) Citation

American National Standards Institute and National Safety Council. American National Standard Specifications for Accident Prevention Signs. American National Standards Institute, 1972.