Cita APA (7th ed.)
Lewis, M. (1976). Origins of intelligence: Infancy and early childhood. Plenum.
Cita Chicago (17th ed.)
Lewis, Michael. Origins of Intelligence: Infancy and Early Childhood. New York: Plenum, 1976.
Cita MLA (9th ed.)
Lewis, Michael. Origins of Intelligence: Infancy and Early Childhood. Plenum, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.