@article{64c4afe110e94608b353cc017bfb66ad,
title = "Child-initiated opportunities produce faster acquisition than instructor-initiated opportunities for teaching new requesting forms to six young children with autism or pervasive developmental disorders",
author = "James Halle and Erik Drasgow",
year = "2008",
doi = "10.1080/17489530802640425",
language = "English (US)",
volume = "2",
pages = "208--212",
journal = "Evidence-Based Communication Assessment and Intervention",
issn = "1748-9539",
publisher = "Informa Healthcare",
number = "4",
}