APA (7th ed.) Citation

Stack, J. K. (1949). What happened to whose back? Safety Engineering, 98, 63.

Chicago Style (17th ed.) Citation

Stack, J. K. "What Happened to Whose Back?" Safety Engineering 98 (1949): 63.

MLA (9th ed.) Citation

Stack, J. K. "What Happened to Whose Back?" Safety Engineering, vol. 98, 1949, p. 63.