APA (7e ed.) Bronvermelding

Barell, J. (1980). Playgrounds of our minds. Teachers College Press.

Chicago (17e ed.) Bronvermelding

Barell, John. Playgrounds of Our Minds. New York: Teachers College Press, 1980.

MLA (9e ed.) Bronvermelding

Barell, John. Playgrounds of Our Minds. Teachers College Press, 1980.