Ackerman, Winona B. Research methods for nurses / Winona B. Ackerman, Paul R. Lohnes. - New York : McGraw-Hill, c1981. - xii, 270 p. : ill. ISBN: 0070001820 Subjects--Topical Terms: Nursing--methods------Research --methods------ National Library of Medicine Call No.: WT 20.5 / A57r 1981