Gall, Joyce P. Applying educational research : a practical guide / Joyce P. Gall, M. D. Gall, Walter R. Borg. - 4th ed. - New York : Longman, c1999. - xvii, 542p. : ill. ; 24 cm Glossary : p. 525 - 533. Includes bibliographical references and index. ISBN: 0801319501 Subjects--Topical Terms: Education--Research--Handbooks, manuals, etc. LC Class. No.: LB1028 / G13 1999