Cita APA (7th ed.)

Spears, H. (1957). Curriculum planning through in-service programs. Prentice-Hall.

Cita Chicago (17th ed.)

Spears, Harold. Curriculum Planning Through In-service Programs. Englewood Cliffs, N. J: Prentice-Hall, 1957.

Cita MLA (9th ed.)

Spears, Harold. Curriculum Planning Through In-service Programs. Prentice-Hall, 1957.