TY  - BOOK
AU  - J.B.Sidgwick
AU  - Sidgwick,J.B.
TI  - Observational Astronomy for Amatyeurs
U1  - B501S57f297 
PY  - 1948///
CY  - London
PB  - Faber and Faber Limited
KW  - Astronomy
N1  - pp.311-339
ER  -