Cita APA (7a ed.)

Spence, R. B. (1927). The improvement of college marking systemes. Columbia University.

Cita Chicago Style (17a ed.)

Spence, Ralph B. The Improvement of College Marking Systemes. New York: Columbia University, 1927.

Cita MLA (8a ed.)

Spence, Ralph B. The Improvement of College Marking Systemes. Columbia University, 1927.