Translated Letter, Penkovskiy to President, August 14, 1960, Unclassified, CIA Electronic FOIA Reading Room, Document No. 0000012269, http: //www.foia.cia.gov. https://doi.org/10.1163/ejb9789004244627.B05097
Chicago-Zitierstil (17. Ausg.)Translated Letter, Penkovskiy to President, August 14, 1960, Unclassified, CIA Electronic FOIA Reading Room, Document No. 0000012269, Http: //www.foia.cia.gov. https://doi.org/10.1163/ejb9789004244627.B05097.
MLA-Zitierstil (9. Ausg.)Translated Letter, Penkovskiy to President, August 14, 1960, Unclassified, CIA Electronic FOIA Reading Room, Document No. 0000012269, Http: //www.foia.cia.gov. https://doi.org/10.1163/ejb9789004244627.B05097.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.