Cita APA (7th ed.)

KLINGELE, W. (1979). Teaching in middle schools. Allyn and Bacon.

Cita Chicago (17th ed.)

KLINGELE, William. Teaching in Middle Schools. Boston: Allyn and Bacon, 1979.

Cita MLA (9th ed.)

KLINGELE, William. Teaching in Middle Schools. Allyn and Bacon, 1979.