00527nam a2200157Ia 4500003000900000008004100009040001600050080001600066100001900082245009800101260007000199300001400269650004100283650002600324650001900350IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a524.33bCAM  aCampbell, Leon 0aStudies of long period variablescLeon Campbell                                                aCambridgebAmerican Association of Variable Stars Observersc1955  axi, 247p.  aAstronomy and astrophysics thesaurus  aLong period variables  aVariable stars