APA Format
Burckel, Christian E.; Burckel, Christian E.. (1951).
Who's who in the United Nations / editor, Christian E. Burckel
. New York :: Christian E. Burckel & Associates,.
MLA Format
Burckel, Christian E.; Burckel, Christian E..
Who's who in the United Nations / editor, Christian E. Burckel
. New York :: Christian E. Burckel & Associates,, 1951
Chicago Format
Burckel, Christian E.; Burckel, Christian E.. Who's who in the United Nations / editor, Christian E. Burckel. New York :: Christian E. Burckel & Associates,, 1951.