Craig, G. J. (1992). Human development (6th ed.). Prentice Hall.
Cita Chicago (17th ed.)Craig, Grace J. Human Development. 6th ed. Englewood Cliffs, N.J: Prentice Hall, 1992.
Cita MLA (9th ed.)Craig, Grace J. Human Development. 6th ed. Prentice Hall, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.