Cita APA (7a ed.)

Sperl, D. H. (1933). The case method technique in professional training. Columbia University.

Cita Chicago Style (17a ed.)

Sperl, Diana Henryetta. The Case Method Technique in Professional Training. New York: Columbia University, 1933.

Cita MLA (8a ed.)

Sperl, Diana Henryetta. The Case Method Technique in Professional Training. Columbia University, 1933.