1. Attachment and exploratory behavior of one-year-olds in a strange situation;Ainsworth,1969
2. Early intervention—A team approach;Allen,1978
3. Peer behavior conceptualized as a variable influencing infant and toddler development;Apollini;American Journal of Orthopsychiatry,1975
4. Autism reversal. Eliminating stereotyped self-stimulation of retarded individuals;Azrin;American Journal of Mental Deficiency,1973
5. Self-injurious behavior: A behavioral analysis;Bachman;Journal of Abnormal Psychology,1972