00451nam a2200145Ia 4500008005100000082001600051100002800067245006100095250000800156260004100164300001000205650001700215650002900232650004400261200103s      2002    ||||xx |||||||||||||| ||und||  a623.89bCHA  aChaudhari, Sudhir Singh 0aChart work : basic concepts & miscellaneous calculations  a4th  bUmavinnie Publicationsc2002aMumbai  a320p.  aDeck Logbook  aTransfer of a pos circle  aPlotting of astronomical position lines