01033nam a2200301 i 450099100116309970753620020507112113.0970308s1979 uk ||| | eng b10182500-39ule_instLE00643189ExLDip.to Fisicaita52.9.5522'.076621.3.8QB62.5Duffett-Smith, Peter463384Practical astronomy with your calculator /Peter Duffett-SmithCambridge :Cambridge University Press,1979xi, 129 p. :ill. ;21 cm.Includes index.Astronomy - Problems, exercises, etc.Calculators.b1018250021-09-0627-06-02991001163099707536LE006 52.9.5 DUF12006000025881le006-E0.00-l- 03030.i1022365427-06-02Practical astronomy with your calculator46085UNISALENTOle00601-01-97ma -enguk 01