Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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