Cita APA (7a ed.)
National Institute of Governmental Purchasing (U.S.). (1993). Government procurement. Penton Pub..
Cita Chicago Style (17a ed.)
National Institute of Governmental Purchasing (U.S.). Government Procurement. Cleveland, Ohio: Penton Pub., 1993.
Cita MLA (9a ed.)
National Institute of Governmental Purchasing (U.S.). Government Procurement. Penton Pub., 1993.
Precaución: Estas citas no son 100% exactas.