00611nam a2200181Ia 4500003000900000008004100009020001800050040001600068080002100084111002200105245010500127260006100232300001600293490003300309650004100342650002400383700002200407IN-BaIIA211028s9999    xx            000 0 eng d  a0-937707-31-7  cIIA Library  a082.2:52bASP-12  aBlitz, Leo., eds. 4aThe evolution of the interstellar mediumcedited by Leo Blitz                                         aSan FranciscobAstronomical Society of the Pacificc1990  aviii, 346p.  aASP conference series; v. 12  aAstronomy and Astrophysics Thesaurus  aInterstellar medium  aBlitz, Leo, ed.