TY  - BOOK
AU  - Barlow,Crossley Willaim Crosby
AU  - Bryan,George Hartley
AU  - Jones,Harold Spencer
TI  - Elementary mathematical astronomy / 
U1  - 521 BAR 
PY  - 1944///] repr. 1961
CY  - London: 
PB  - University tutorial press ltd., 
KW  - Astronomy
N1  -  "Fifth edition, revised 1944.";  "Answers": p. 377-380
ER  -