TY  - BOOK
AU  - Crawford, David L.
TI  - Instrumentation in astronomy III:proceedings of the society of photo-optical instrumentation engineers v. 172 
SN  - 0892522003
U1  - 520(069) CRA 
PY  - 1979///
PB  - Society of Photo Optical Instruments Engineers
KW  - Astronomy
ER  -