Style de citation APA (7e éd.)

Ginsburg, H., & Opper, S. (1969). Piaget's theory of intellectual development: An introduction. Prentice-Hall.

Style de citation Chicago (17e éd.)

Ginsburg, Herbert, et Sylvia Opper. Piaget's Theory of Intellectual Development: An Introduction. Englewood Cliffs, N.J.: Prentice-Hall, 1969.

Style de citation MLA (8e éd.)

Ginsburg, Herbert, et Sylvia Opper. Piaget's Theory of Intellectual Development: An Introduction. Prentice-Hall, 1969.