TY  - BOOK
AU  - Hearnshaw, J. B
TI  - Astronomical spectrographs and their history
SN  - 9780521882576
U1  - 522.67 HEA 
PY  - 2009///
CY  - Cambridge
PB  - Cambridge Univeristy Press
KW  - Spectrograph - History
ER  -