Ann Ratcliff
发表
Mark Lehman,
Ann Ratcliff,
Beth Anne Sutton,
2009,
Augmentative and alternative communication.
Ann Ratcliff,
Mark E. Lehman,
A. Ratcliff,
2002
.
Ann Ratcliff,
L. Ivanitskaya,
Lana Ivanitskaya,
2013
.