APA aipamena

Gurney, G. (1967). Walk in Space: The Story of Project Gemini. New York: Random House.

Chicago Style aipamena

Gurney, Gene. Walk in Space: The Story of Project Gemini. New York: Random House, 1967.

MLA aipamena

Gurney, Gene. Walk in Space: The Story of Project Gemini. New York: Random House, 1967.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.