TY  - BOOK
AU  - Koper,Enrico
TI  - The interstellar medium in M 31 and other nearby galaxies
PY  - 1993///
CY  - Leiden
PB  - Sterrewatcht
KW  - Astrofísica y Astronomía Descriptiva
KW  - Material interestelar
KW  - interstellar matter
KW  - galaxias cercanas
KW  - nearby galaxies
KW  - M 31
ER  -