Hepler, Opal Elsie Manual of clinical laboratory methods. With a foreword by James P. Simonds. - 4th ed. - Springfield, Ill. C. C. Thomas [1949] - xv, 387 p. illus. (part col.) 28 cm. LCCN: 49001702 Subjects--Topical Terms: Diagnosis, Laboratory LC Class. No.: RB37 / .H38 1949 Dewey Class. No.: 616.072