Beck Cheryl Tatano. Polit Denise F. Study Guide for Essentials of Nursing Research : Appraising Evidence for Nursing Practice - 7th ed. - Philadelphia Lippincott William Wilkins 2010 - 282 p. ISBN: 9780781785815 Subjects--Topical Terms: NURSING RESEARCH -- METHODS National Library of Medicine Call No.: WY20.5 / P769S 2010