TY - BOOK AU - Johnson,Burke AU - Christensen,Larry B. TI - Educational research: quantitative, qualitative, and mixed approaches SN - 0205361269 AV - LB1028 .J59 2004 PY - 2004///] CY - Boston PB - Allyn and Bacon KW - Education KW - Research N1 - Includes bibliographical references and index ER -