APA (7th ed.) Citation

Bock, B., & Farkas, J. (1969). Concentration and productivity: Some preliminary problems and findings. [National Industrial Conference Board].

Chicago Style (17th ed.) Citation

Bock, Betty, and Jack Farkas. Concentration and Productivity: Some Preliminary Problems and Findings. [New York]: [National Industrial Conference Board], 1969.

MLA (9th ed.) Citation

Bock, Betty, and Jack Farkas. Concentration and Productivity: Some Preliminary Problems and Findings. [National Industrial Conference Board], 1969.