Elkin, Martha Keene. Nursing interventions & clinical skills / Nursing interventions and clinical skills. Martha Keene Elkin, Anne Griffin Perry, Patricia A. Potter. - 4th ed. - St. Louis : Mosby, c2007. - xxiv, 900 p. : col. ill. ; 28 cm. Includes index. Includes bibliographical refereances. ISBN: 9780323044585 (pbk.) Subjects--Topical Terms: Nursing.Clinical competence.