Cita APA (7th ed.)

Barr, A. S., Burton, W. H., & Brueckner, L. J. (1947). Supervision: Democratic leadership in the improvement of learning (2d ed.). D. Appleton Century company, inc.

Cita Chicago (17th ed.)

Barr, Arvil Sylvester, William Henry Burton, i Leo John Brueckner. Supervision: Democratic Leadership in the Improvement of Learning. 2d ed. New York and London: D. Appleton Century company, inc, 1947.

Cita MLA (9th ed.)

Barr, Arvil Sylvester, et al. Supervision: Democratic Leadership in the Improvement of Learning. 2d ed. D. Appleton Century company, inc, 1947.