TY - BOOK AU - Yancey,Kathleen Blake,ed TI - Portfolios in the writing classroom: an introduction SN - 0814136451 U1 - 428.007/Y21p PY - 1992/// CY - Urbana, Illinois PB - National Council of Teachers of English KW - English language KW - Composition and exercises-Study and teaching-United States N1 - Includes bibliographical references ER -