R.A SWALLOW Clark's Positioning in radiography. - 11th ed. / edited by R.A. Swallow ... [et al.]. - Oxford ; Boston : Butterworth-Heinemann, c1986 - 418 p. : ill. ; 30 cm. Includes index. ISBN: 0750603402 Subjects--Topical Terms: Radiography, Medical--Positioning.Radiography LC Class. No.: RC78 / .C56 1986