Smith, H. H. (1973). Area handbook for Afghanistan (4th ed.). U.S. Government Printing Office.
Cita Chicago (17th ed.)Smith, Harvey Henry. Area Handbook for Afghanistan. 4th ed. Washington, D.C: U.S. Government Printing Office, 1973.
Cita MLA (9th ed.)Smith, Harvey Henry. Area Handbook for Afghanistan. 4th ed. U.S. Government Printing Office, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.