Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Precaución: Estas citas no son 100% exactas.