APA (7th ed.) Citation

Griffin, W. E. B., & Butterworth, W. E. (2013). Hazardous duty. G.P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Griffin, W. E. B., and William E. Butterworth. Hazardous Duty. New York: G.P. Putnam's Sons, 2013.

MLA (9th ed.) Citation

Griffin, W. E. B., and William E. Butterworth. Hazardous Duty. G.P. Putnam's Sons, 2013.