00562nam a2200181Ia 4500003000900000008004100009020001800050040001600068080001500084100002100099245009200120260003800212300001600250490003500266650004100301650002300342650001500365IN-BaIIA211028s9999    xx            000 0 eng d  a0-85109-440-6  cIIA Library  a520.2bBAR  aBarlow, Boris V. 4aThe astronomical telescopecBoris V. Barlow                                              aLondonbWykehan Publictaionc1975  aviii, 213p.  aThe Wykeham science series; 31  aAstronomy and astrophysics thesaurus  aOptical telescopes  aTelescopes