(1990). Title 48, Federal Acquisition Regulations System. [issued by General Services Administration, Department of Defense, National Aeronautics and Space Administration]. Chapter 1, Federal Acquisition Regulation.
Cita Chicago (17th ed.)Title 48, Federal Acquisition Regulations System. [issued by General Services Administration, Department of Defense, National Aeronautics and Space Administration]. Chapter 1, Federal Acquisition Regulation. 1990.
Cita MLA (9th ed.)Title 48, Federal Acquisition Regulations System. [issued by General Services Administration, Department of Defense, National Aeronautics and Space Administration]. Chapter 1, Federal Acquisition Regulation. 1990.
Atenció: Aquestes cites poden no estar 100% correctes.