De lateribus et angulis triangulorum tum planorum rectilineorum tum sphaericorum
Nicolaus Copernicus, 1542
De revolutionibus orbium coelestium
Nicolaus Copernicus, 1566
COPERNICUS, Nicolaus (1473-1543)
De revolutionibus orbium coelestium . - Georg Johann RHETICUS (1514-1574). De libris revolutionum Nicolai Copernici Narratio prima. Basel: Heinrich Petri, 1566.
Two Copernican texts
Copernicus, Müller, and Baranzano, 1617