Astor, Saul D, b.1924 Loss prevention : controls and concepts a creative approach to security applications / by Saul D. Astor - Boston, Mass. : Butterworths, 1978 - xiii, 273 p. ; 24 cm. Includes index ISBN: 0913708291 Subjects--Topical Terms: Retail trade--Security measuresInventory shortages--PreventionShopliftingEmployee theft