Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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