District of Columbia. (1952). District of Columbia code (annotated): Containing the laws, general and permanent in their nature, relating to or in force in the District of Columbia (except such laws as are of application in the District of Columbia by reason of being general and permanent laws of the United States), in force on January 2, 1952 (1951 edition.). United States Government Printing Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)District of Columbia. District of Columbia Code (annotated): Containing the Laws, General and Permanent in Their Nature, Relating to or in Force in the District of Columbia (except Such Laws as Are of Application in the District of Columbia by Reason of Being General and Permanent Laws of the United States), in Force on January 2, 1952. 1951 edition. Washington: United States Government Printing Office, 1952.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)District of Columbia. District of Columbia Code (annotated): Containing the Laws, General and Permanent in Their Nature, Relating to or in Force in the District of Columbia (except Such Laws as Are of Application in the District of Columbia by Reason of Being General and Permanent Laws of the United States), in Force on January 2, 1952. 1951 edition. United States Government Printing Office, 1952.