Cita APA (7th ed.)

Piaget, J., & Campbell, R. L. (2015). Studies in reflecting abstraction. Psychology Press.

Cita Chicago (17th ed.)

Piaget, Jean, i Robert L. Campbell. Studies in Reflecting Abstraction. New York, Estados Unidos: Psychology Press, 2015.

Cita MLA (9th ed.)

Piaget, Jean, i Robert L. Campbell. Studies in Reflecting Abstraction. Psychology Press, 2015.