00516nam a2200157Ia 4500003000900000008004100009040001600050080001700066245010400083260003700187300001400224500002600238650002800264650004100292700002500333IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a520.2bING-2 0aAmateur telescope makingbbook twocedited by Albert G. Ingalls                                      aU S AbScientific Americanc1972  avi, 650p.  aDonated by Mrs. Bappu  aAstronomical Telescopes  aAstronomy and Astrophysics Thesaurus  aIngalls, Albert G ed