APA-referens (7:e uppl.)

Smith, L. M., & Geoffrey, W. (1968). The complexities of an urban classroom: An analysis toward a general theory of teaching. Holt, Rinehart and Winston.

Chicago-referens (17:e uppl.)

Smith, Louis M., och William Geoffrey. The Complexities of an Urban Classroom: An Analysis Toward a General Theory of Teaching. New York: Holt, Rinehart and Winston, 1968.

MLA-referens (9:e uppl.)

Smith, Louis M., och William Geoffrey. The Complexities of an Urban Classroom: An Analysis Toward a General Theory of Teaching. Holt, Rinehart and Winston, 1968.