Southwestern Portland Cement Co & Smith, E. (1929). Effect of bonus on accident record of Southwestern Portland Cement Company. [publisher not identified].
Chicago Style (17th ed.) CitationSouthwestern Portland Cement Co and Emory Smith. Effect of Bonus on Accident Record of Southwestern Portland Cement Company. Washington, D.C.: [publisher not identified], 1929.
MLA (9th ed.) CitationSouthwestern Portland Cement Co and Emory Smith. Effect of Bonus on Accident Record of Southwestern Portland Cement Company. [publisher not identified], 1929.
Warning: These citations may not always be 100% accurate.