Não informado. (1961). Satellite situation report. National Aeronautics and Space Administration, Goddard Space Flight Center.
Čikaški stil citiranja (17. izdanje)Não informado. Satellite Situation Report. Greenbelt, Md: National Aeronautics and Space Administration, Goddard Space Flight Center, 1961.
MLA način citiranja (8. izdanje)Não informado. Satellite Situation Report. National Aeronautics and Space Administration, Goddard Space Flight Center, 1961.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.