00526nam a2200181Ia 4500003000900000008004100009020001600050040001600066080001500082100001700097245006100114260004600175300001400221650004100235650002400276650002400300700002000324IN-BaIIA211028s9999    xx            000 0 eng d  a674-46075-8  cIIA Library  a524.5bKAP  aKaplan, S. A 4aThe interstellar mediumcS. A. Kaplan and S. B. Pikelner  aCambridgebHarvard University Pressc1970  axi, 465p.  aAstronomy and astrophysics thesaurus  aInterstellar matter  aInterstellar medium  aPikelner, S. B.