Seeing the sky
Schaaf, Fred
Seeing the sky 100 projects, activities, and explorations in astronomy Fred Schaaf ; with illustrations by Doug Myers - New York John Wiley & Sons 1990 - xi, 212 p. fig., tab. 25 cm
Includes references, index
047151067X
Αστρονομία--Πειράματα
Αστρονομικά όργανα
Πρακτική αστρονομία
89-70673
Seeing the sky 100 projects, activities, and explorations in astronomy Fred Schaaf ; with illustrations by Doug Myers - New York John Wiley & Sons 1990 - xi, 212 p. fig., tab. 25 cm
Includes references, index
047151067X
Αστρονομία--Πειράματα
Αστρονομικά όργανα
Πρακτική αστρονομία
89-70673