APA (7th ed.) Citation

Halsey, G. D. (1955). Selecting and developing first-line supervisors. Harper.

Chicago Style (17th ed.) Citation

Halsey, George D. Selecting and Developing First-line Supervisors. New york: Harper, 1955.

MLA (9th ed.) Citation

Halsey, George D. Selecting and Developing First-line Supervisors. Harper, 1955.