Astronomical observations:
Walker, Gordon 1936-
Astronomical observations: an optical perspective / Gordon Walker - Cambridge [Cambridgeshire] : Cambridge University Press, 1987. - xii, 347p. ill. ; 26 cm.
Includes index.
Bibliography: p. [321]-341.
9780521339070
Astronomical instruments.
Astronomy--Technique.
Optical instruments.
Astrophysics.
522
Astronomical observations: an optical perspective / Gordon Walker - Cambridge [Cambridgeshire] : Cambridge University Press, 1987. - xii, 347p. ill. ; 26 cm.
Includes index.
Bibliography: p. [321]-341.
9780521339070
Astronomical instruments.
Astronomy--Technique.
Optical instruments.
Astrophysics.
522