Copernicus, Nicolaus 1473-1543.
On the revolutions. Book 1. /
Nicholas Copernicus ; introduction and postscript by Jerzy Dobrzycki 
. - Toruń : Nicolaus Copernicus University Press,  1991 
. - 88 cm  ill.  20 cm. 
<br/><label>  ISBN: </label>83-231-0275-9