Gruntman, M. (2004). Blazing the trail: The early history of spacecraft and rocketry. American Institute of Aeronautics and Astronautics.
Citace podle Chicago (17th ed.)Gruntman, Mike. Blazing the Trail: The Early History of Spacecraft and Rocketry. Reston, Va.: American Institute of Aeronautics and Astronautics, 2004.
Citace podle MLA (9th ed.)Gruntman, Mike. Blazing the Trail: The Early History of Spacecraft and Rocketry. American Institute of Aeronautics and Astronautics, 2004.
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