TY - BOOK AU - Vinson,Betsy Partin TI - Language disorders across the lifespan: an introduction SN - 9781565939776 (pbk. : alk. paper) PY - 1999/// CY - San Diego PB - Singular Pub. Group KW - Language Disorders KW - Adolescent KW - Adult KW - Child KW - Child, Preschool N1 - Includes bibliographical references and index ER -