The Byurakan Observatory
A.M.Mickaelian
The Byurakan Observatory A.M.Mickaelian - Yerevan Edit Print 2008 - 48 p.,phot.
Astronomy--History
A1003M68f2532
The Byurakan Observatory A.M.Mickaelian - Yerevan Edit Print 2008 - 48 p.,phot.
Astronomy--History
A1003M68f2532