Gaya APA

Lane, J, D., Ledford, J, R. (2014). Using Interval-Based Systems toMeasure Behavior in Early Childhood Special Education and Early Intervention . : Hammill Institute on Disabilities.

Gaya MLA

Lane, Justin, D.., Ledford, Jennifer, R.. "Using Interval-Based Systems toMeasure Behavior in Early Childhood Special Education and Early Intervention". : Hammill Institute on Disabilities, 2014. e-journal.