TY  - BOOK
AU  - Symposium on Astronomical Optics and Relation Subjects (Manchester April, 19th-22nd, 1955)
AU  - Kopal, Zdenek
TI  - Proceedings of a symposium on astronomical optics and related subject: edited by Zdenek Kopal
U1  - 521.035 
PY  - 1956///
CY  - Amsterdam
PB  - NorthHolland Publishing Company
KW  - Physical sciences Space sciences
ER  -