APA (7th ed.) Citation

Grimwood, J. M., Hacker, B. C., & Vorzimmer, P. J. (1969). Project Gemini, technology and operations: A chronology. [publisher not identified].

Chicago Style (17th ed.) Citation

Grimwood, James M., Barton C. Hacker, and Peter J. Vorzimmer. Project Gemini, Technology and Operations: A Chronology. [Place of publication not identified]: [publisher not identified], 1969.

MLA (9th ed.) Citation

Grimwood, James M., et al. Project Gemini, Technology and Operations: A Chronology. [publisher not identified], 1969.