TY - BOOK AU - Leedy,Paul D. AU - Ormrod,Jeanne Ellis TI - Practical research: planning and design SN - 0139603603 U1 - 001.4 LEE 21 PY - 2001/// CY - Upper Saddle River, N.J. PB - Merrill Prentice Hall KW - Research N1 - Includes bibliographical references and index ER -