Callaghan, T. C. (2004). Modeling referential actions in 6- to 18-month-old infants: Precusor to symbolic understanding.
Cita Chicago (17th ed.)Callaghan, Tara C. Modeling Referential Actions in 6- to 18-month-old Infants: Precusor to Symbolic Understanding. v.75 /September-October, 2004.
Cita MLA (9th ed.)Callaghan, Tara C. Modeling Referential Actions in 6- to 18-month-old Infants: Precusor to Symbolic Understanding. 2004.
Atenció: Aquestes cites poden no estar 100% correctes.