00394    a2200145   4500020001800000082001500018100001600033245002700049260004600076300002000122440003100142650001400173650003400187650002700221  a9780074603994  a526.9bBAS  aBasak, N.N.  aSurveying and leveling  aNew DelhibTata McGraw - Hillc1994g1994  axiv,549p.c23cm  aTechnical education series  aSurveying  aAstronomy and allied sciences  aMathematical geography