TY  - BOOK
AU  - Smart, W. M.
TI  - Textbook on spherical astronomy
SN  - 0-521-29180-1
PY  - 1977///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Occultations and Eclipses
KW  - Parallox
KW  - Spherical Trignometry
KW  - The Celestial Sphere
ER  -