Nicolaus Copernicus, 1473-1973
Szperkowicz, Jerzy.
Towarzystwo Naukowe w Toruniu.
Warszawa: [Państwowe Wydawn. Naukowe],
1972.
At head of title: Toruń Scientific Society.
"Programme of celebrations in Poland to commemorate the 500th anniversary of the birth of Nicolaus Copernikus": 10 p. inserted.
Copernicus, Nicolaus, 1473-1543.