Cita APA (7th ed.)

Freeman, H. R., & Longanecker, G. W. (1979). The International Ultraviolet Explorer: Case study in spacecraft design. Goddard Space Flight Center.

Cita Chicago (17th ed.)

Freeman, H. R., i G. W. Longanecker. The International Ultraviolet Explorer: Case Study in Spacecraft Design. Greenbelt, Md.: Goddard Space Flight Center, 1979.

Cita MLA (9th ed.)

Freeman, H. R., i G. W. Longanecker. The International Ultraviolet Explorer: Case Study in Spacecraft Design. Goddard Space Flight Center, 1979.