Citazione Stile APA (7a Edizione)

Sutherland, M. B. (1988). Theory of education. Longman.

Citazione stile Chigago Style (17a edizione)

Sutherland, Margaret B.. Theory of Education. London ; New York: Longman, 1988.

Citatione MLA (9a ed.)

Sutherland, Margaret B.. Theory of Education. Longman, 1988.