Cita APA (7th ed.)

Ceci, S. J. (1990). On intelligence-- more or less: A bio-ecological treatise on intellectual development. Prentice Hall.

Cita Chicago (17th ed.)

Ceci, Stephen J. On Intelligence-- More or Less: A Bio-ecological Treatise on Intellectual Development. Englewood Cliffs, N.J.: Prentice Hall, 1990.

Cita MLA (9th ed.)

Ceci, Stephen J. On Intelligence-- More or Less: A Bio-ecological Treatise on Intellectual Development. Prentice Hall, 1990.