Fraknoi, Andrew.
More universe at your fingertips : astronomy activities and resources / by A. Fraknoi and D. Schatz. - California : Astronomical Society of the Pacific, 2000. - 118 p. : ill. ;
1886733988
General Astronomy
More universe at your fingertips : astronomy activities and resources / by A. Fraknoi and D. Schatz. - California : Astronomical Society of the Pacific, 2000. - 118 p. : ill. ;
1886733988
General Astronomy