USA Bureau of Foreign and Domestic Commerce. Special agents series. Government Printing Office.
Chicago-Zitierstil (17. Ausg.)USA Bureau of Foreign and Domestic Commerce. Special Agents Series. Washington: Government Printing Office.
MLA-Zitierstil (9. Ausg.)USA Bureau of Foreign and Domestic Commerce. Special Agents Series. Government Printing Office.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.