Astronomy: a Textbook for University and College Students
Baker, Robert H.
Astronomy: a Textbook for University and College Students - New York : D. Van Nostrand Co., 1938. - 527 p. : tela ; 18 cm.
Astronomy: a Textbook for University and College Students - New York : D. Van Nostrand Co., 1938. - 527 p. : tela ; 18 cm.