Cita APA (7th ed.)

Henry, N. B. (1957). In-service education for teachers, supervisors, and administrators. Chicago Press.

Cita Chicago (17th ed.)

Henry, Nelson B. In-service Education for Teachers, Supervisors, and Administrators. Illinois: Chicago Press, 1957.

Cita MLA (9th ed.)

Henry, Nelson B. In-service Education for Teachers, Supervisors, and Administrators. Chicago Press, 1957.