Cita APA (7th ed.)

Johnson, W., Darley, F. L., & Spriestersbach, D. C. (1952). Diagnostic manual in speech correction: A professional training workbook. Harper & Brothers Pub.

Cita Chicago (17th ed.)

Johnson, Wendell, Frederic L. Darley, i D. C. Spriestersbach. Diagnostic Manual in Speech Correction: A Professional Training Workbook. New York: Harper & Brothers Pub, 1952.

Cita MLA (9th ed.)

Johnson, Wendell, et al. Diagnostic Manual in Speech Correction: A Professional Training Workbook. Harper & Brothers Pub, 1952.