Hooper, S. R., & Umansky, W. (2004). Young children with special needs (4th ed.). Pearson/Merrill Prentice Hall.
Cita Chicago (17th ed.)Hooper, Stephen R., i Warren Umansky. Young Children with Special Needs. 4th ed. Upper Saddle River, N.J: Pearson/Merrill Prentice Hall, 2004.
Cita MLA (9th ed.)Hooper, Stephen R., i Warren Umansky. Young Children with Special Needs. 4th ed. Pearson/Merrill Prentice Hall, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.