APA (7th ed.) Citation

Pigors, P. J. W., Pigors, F., & Clark, W. V. A. (1944). Human aspects of multiple shift operations. [publisher not identified].

Chicago Style (17th ed.) Citation

Pigors, Paul John William, Faith Pigors, and W. Van Alan Clark. Human Aspects of Multiple Shift Operations. Cambridge, Mass.: [publisher not identified], 1944.

MLA (9th ed.) Citation

Pigors, Paul John William, et al. Human Aspects of Multiple Shift Operations. [publisher not identified], 1944.