TY  - BOOK
TI  - Copernicus Nicolaus, Mathematicus: An exhibition celebrating the 500th Anniversary of his birth ; [bucklet]
PY  - 1973///]
CY  - New York
PB  - IBM Exhibit center
KW  - Copernicus, Nicolaus,
KW  - Աստղագիտություն
KW  - Ցուցահանդես
ER  -