DePoy, Elizabeth Introduction to research : understanding and applying multiple strategies / Elizabeth DePoy, Laura N. Gitlin - 3rd ed. - St. Louis, Mo. : Mosby, 2005 - xix, 346 p. : ill. ; 24 cm. ISBN: 0323028535 RM170.81 Subjects--Topical Terms: Research design National Library of Medicine Call No.: W20.5 / .D422i 2005