Vaughan-Wrobel, Beth C. The problem-oriented system in nursing : a workbook / Beth C. Vaughan-Wrobel, Betty S. Henderson. - 2nd ed. - St. Louis : Mosby, c1982. - xii, 194 p. : ill. ; 24cm Includes index. ISBN: 0801652227 LC Class. No.: RT71 / .V38 1982