Cita APA (7a ed.)

Haefner, R. (1929). The educational significance of left-handedness. Columbia University.

Cita Chicago Style (17a ed.)

Haefner, Ralph. The Educational Significance of Left-handedness. New York: Columbia University, 1929.

Cita MLA (8a ed.)

Haefner, Ralph. The Educational Significance of Left-handedness. Columbia University, 1929.