Polit, Denise F Nursing Research : principle and methods / Denise F. Polit and Cheryl Tatano Beck. - Seventh edition. - Philadelphia : Lippincott Williams & Wilkins , 2004. - xvii, 758 pages : black and white, illus. ; 24 cm Includes indexes and glossary. Includes bibliographical references. ISBN: 0-7817-3733-8 Subjects--Topical Terms: Nursing--Research.--Methodology.Nursing research--Methods. Dewey Class. No.: MAHL/Nurs'g 610.73'072 P769 2004