Dyfyniad APA

Piaget, J., Burrell, P., Fishbein, H. D., Inhelder, B., & Leake, L. (1975). The origin of the idea of chance in children. Norton.

Dyfyniad Arddull Chicago

Piaget, Jean, Paul Burrell, Harold D. Fishbein, Barbel Inhelder, and Lowell Leake. The Origin of the Idea of Chance in Children. New York: Norton, 1975.

Dyfyniad MLA

Piaget, Jean, et al. The Origin of the Idea of Chance in Children. Norton, 1975.

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