Koelle, H. H. (2002). A road map for the acquisition of the first lunar base: The moon challenges humans to return and discover its secrets. Techn. Univ., Inst. of Aeronautics and Astronautics.
Chicago-Zitierstil (17. Ausg.)Koelle, Heinz Hermann. A Road Map for the Acquisition of the First Lunar Base: The Moon Challenges Humans to Return and Discover Its Secrets. Berlin: Techn. Univ., Inst. of Aeronautics and Astronautics, 2002.
MLA-Zitierstil (9. Ausg.)Koelle, Heinz Hermann. A Road Map for the Acquisition of the First Lunar Base: The Moon Challenges Humans to Return and Discover Its Secrets. Techn. Univ., Inst. of Aeronautics and Astronautics, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.