Style de citation APA

(1958). Memorandum, Earman to Goodpaster, SPUTNIK II, With or Without Dog?, March 17, 1958, Secret.

Style de citation Chicago

Memorandum, Earman to Goodpaster, SPUTNIK II, With or Without Dog?, March 17, 1958, Secret. 1958.

Style de citation MLA

Memorandum, Earman to Goodpaster, SPUTNIK II, With or Without Dog?, March 17, 1958, Secret. 1958.

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