United States. National Aeronautics and Space Administration. Astrophysics Performance Assessment Committee & ebrary, Inc. (2007). A performance assessment of NASA's Astrophysics Program. National Research Council.
Cytowanie według stylu Chicago (wyd. 17)United States. National Aeronautics and Space Administration. Astrophysics Performance Assessment Committee i Inc ebrary. A Performance Assessment of NASA's Astrophysics Program. Washington, D.C.: National Research Council, 2007.
Cytowanie według stylu MLA (wyd. 9)United States. National Aeronautics and Space Administration. Astrophysics Performance Assessment Committee i Inc ebrary. A Performance Assessment of NASA's Astrophysics Program. National Research Council, 2007.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..