Citazione Stile APA (7a Edizione)

Witty, P. A., & Kopel, D. (1939). Reading and the educative process. Ginn and company.

Citazione stile Chigago Style (17a edizione)

Witty, Paul Andrew, e David Kopel. Reading and the Educative Process. Boston, New York [etc.]: Ginn and company, 1939.

Citatione MLA (9a ed.)

Witty, Paul Andrew, e David Kopel. Reading and the Educative Process. Ginn and company, 1939.