Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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