Exploration of the universe/
Abell, George O. 1987
Exploration of the universe/ George O Abell; David Morrison; Sidney C Wolff - 5th ed - Philadelphia : Saunders College Pub., ©1987. - x, 748, [7], [44] p. : ill. ; Include bibliograpical reference and index, 26 cm. - Saunders golden sunburst series. .
0030051436
Astronomy
QB45.A16 1987
Exploration of the universe/ George O Abell; David Morrison; Sidney C Wolff - 5th ed - Philadelphia : Saunders College Pub., ©1987. - x, 748, [7], [44] p. : ill. ; Include bibliograpical reference and index, 26 cm. - Saunders golden sunburst series. .
0030051436
Astronomy
QB45.A16 1987