Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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