Cita APA (7th ed.)

Waits, H. E. (1922). Practical problems of the school. Benj. H. Sanborn.

Cita Chicago (17th ed.)

Waits, Harmon Ebert. Practical Problems of the School. Chicago: Benj. H. Sanborn, 1922.

Cita MLA (9th ed.)

Waits, Harmon Ebert. Practical Problems of the School. Benj. H. Sanborn, 1922.