Copernicus, Galileus, Keplerus? : after some 500 years Copernicus joins Galileo and Kepler as Kopernik /
Waldo, Arthur Leonard (1896-1985).
Copernicus, Galileus, Keplerus? : after some 500 years Copernicus joins Galileo and Kepler as Kopernik / Arthur L. Waldo. - Brooklyn, N.Y. : Polish National Alliance, 1971. - 7 s. : il. ; 23 cm.
Copernicus, Galileus, Keplerus? : after some 500 years Copernicus joins Galileo and Kepler as Kopernik / Arthur L. Waldo. - Brooklyn, N.Y. : Polish National Alliance, 1971. - 7 s. : il. ; 23 cm.