00507nam a2200169Ia 450000500170000000800410001702000180005804000180007604100080009408200220010210000210012424500370014525000120018226000720019430000290026665000420029520230120101940.0210716s2015    xx            000 0 und d  a9789352131082  cAIMIT LIBRARY  aeng  a005.132 21bWICH  aWickham, Hadley.  aR packages /cBy Hadley Wickham.  a1st ed.  aNew Delhi :bShroff  Publications and Distributers Pvt Ltd ,c2015.  axiv,182p. ;bPBc23.2 cm  aComputer programming, programs, data.