USA National Aeronautics and Space Administration. (1974). Aeronautics and space report of the President: Fiscal year ... activities. US Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)USA National Aeronautics and Space Administration. Aeronautics and Space Report of the President: Fiscal Year ... Activities. Washington, DC: US Gov. Print. Off, 1974.
MLA-Zitierstil (9. Ausg.)USA National Aeronautics and Space Administration. Aeronautics and Space Report of the President: Fiscal Year ... Activities. US Gov. Print. Off, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.