PEATA. (1997). Handbook and Guide on DC Regulations, 4th Printing. PEATA Publications.
Cita Chicago (17th ed.)PEATA. Handbook and Guide on DC Regulations, 4th Printing. PEATA Publications, 1997.
Cita MLA (9th ed.)PEATA. Handbook and Guide on DC Regulations, 4th Printing. PEATA Publications, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.