%0 Journal Article %T Naturalistic Observations of Nonverbal Children with Autism: A Study of Intentional Communicative Acts in the Classroom %A Samantha Drain %A Paul E. Engelhardt %J Child Development Research %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/296039 %U http://dx.doi.org/10.1155/2013/296039