APA

Downing R. E., Whitehead T. D., Terre L. & Calkins C. F. (19991007). The Missouri Developmental Disability Resource Center: a Web site responding to the critical need for information of parents with a child with a disability. : Behavior research methods, instruments, & computers : a journal of the Psychonomic Society, Inc.

Chicago

Downing R E, Whitehead T D, Terre L and Calkins C F. 19991007. The Missouri Developmental Disability Resource Center: a Web site responding to the critical need for information of parents with a child with a disability. : Behavior research methods, instruments, & computers : a journal of the Psychonomic Society, Inc.

Harvard

Downing R. E., Whitehead T. D., Terre L. and Calkins C. F. (19991007). The Missouri Developmental Disability Resource Center: a Web site responding to the critical need for information of parents with a child with a disability. : Behavior research methods, instruments, & computers : a journal of the Psychonomic Society, Inc.

MLA

Downing R E, Whitehead T D, Terre L and Calkins C F. The Missouri Developmental Disability Resource Center: a Web site responding to the critical need for information of parents with a child with a disability. : Behavior research methods, instruments, & computers : a journal of the Psychonomic Society, Inc. 19991007.