TY  - BOOK
AU  - Walker,Gordon Arthur Hunter
TI  - Astronomical observations: An optical perspective 
SN  - 0521325870
U1  - 522 19
PY  - 1987///
CY  - Cambridge [Cambridgeshire], New York
PB  - Cambridge University Press
KW  - Astronomical instruments
KW  - Astronomy
KW  - Technique
KW  - Optical instruments
KW  - Astrophysics
N1  - Includes index; Bibliogr.: p. [321]-341
ER  -