Gruntman, M. (2004). Blazing the trail: The early history of spacecraft and rocketry. American Institute of Aeronautics and Astronautics.

Gruntman, Mike. Blazing the Trail: The Early History of Spacecraft and Rocketry. Reston, Va.: American Institute of Aeronautics and Astronautics, 2004.

Gruntman, Mike. Blazing the Trail: The Early History of Spacecraft and Rocketry. American Institute of Aeronautics and Astronautics, 2004.