00395nam a2200145Ia 4500003000900000008004100009040001600050080001300066100001600079245005000095260003900145300001300184650004100197650001100238IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a535bMAC  aMach, Ernst 4aThe principles of physical opticscErnst Mach  aNew YorkbDover Publicationsc1926  ax, 324p.  aAstronomy and astrophysics thesaurus  aOptics