TY  - BOOK
AU  - Lang, Kenneth R
AU  - Gingerich, Owen
TI  - A source book in astronomy and astrophysics,1900-1975
SN  - 0-674-82200-5
PY  - 1979///
CY  - Cambridge
PB  - Harvard University Press
KW  - Astronomy
KW  - Astronomy and astrophysics thesaurus
ER  -