Style de citation APA

(1958). Memorandum, Cumming to The Secretary, Balloon Project, July 29, 1958, Top Secret.

Style de citation Chicago

Memorandum, Cumming to The Secretary, Balloon Project, July 29, 1958, Top Secret. 1958.

Style de citation MLA

Memorandum, Cumming to The Secretary, Balloon Project, July 29, 1958, Top Secret. 1958.

Attention : ces citations peuvent ne pas être correctes à 100%.