(2016). O gosudarstvennykh zakupkakh.
Cita Chicago (17th ed.)O Gosudarstvennykh Zakupkakh. 2016.
Cita MLA (9th ed.)O Gosudarstvennykh Zakupkakh. 2016.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)