Dadaev, A. N. (1978). Pulkovo Observatory: An essay on its history and scientific activity. National Aeronautics and Space Administration.
Chicago-Zitierstil (17. Ausg.)Dadaev, Aleksandr N. Pulkovo Observatory: An Essay on Its History and Scientific Activity. Washington, DC: National Aeronautics and Space Administration, 1978.
MLA-Zitierstil (9. Ausg.)Dadaev, Aleksandr N. Pulkovo Observatory: An Essay on Its History and Scientific Activity. National Aeronautics and Space Administration, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.