APA (7th ed.) Citation

Blake, R. P., & Armstrong, T. O. (1943). Industrial safety. Prentice-Hall.

Chicago Style (17th ed.) Citation

Blake, Roland P., and T. O. Armstrong. Industrial Safety. N.Y.: Prentice-Hall, 1943.

MLA (8th ed.) Citation

Blake, Roland P., and T. O. Armstrong. Industrial Safety. Prentice-Hall, 1943.