00402nam a22001217a 450000500170000000800410001702000150005805000180007310000240009124501030011526000380021830000240025620260407105020.0260407b        |||||||| |||| 00| 0 eng d  a0471531421  aQB63.M43 1991  aMatloff L. Gregory   aThe Urban Astronomer :bA practical guide for observers in cities and suburbs/cGregory L. Matloff  aCanadabJohn Wiley and sonsc1991  axv,ills; 224p.bhbk