@inbook{1135305879, author={James W. Bellew and Susan L. Michlovitz and Thomas P. Nolan Jr.}, title={Preface to the First Edition}, booktitle={Modalities for Therapeutic Intervention, 6e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2016}, url={fadavispt.mhmedical.com/content.aspx?aid=1135305879} }