Fernandes, A Proprietary or contract? The most cost-conscious decision you should make this year. [electronic resource] - Journal of healthcare protection management : publication of the International Association for Hospital Security 1985 - 95-8 p. digital Publication Type: Journal Article ISSN: 0891-7930 Subjects--Topical Terms: Contract Services--economicsFinancial Management--economicsHospitalsSecurity Measures--organization & administration