Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Precaución: Estas citas no son 100% exactas.