00504nam a2200169 a 450000500170000002000180001708200200003510000110005524501170006626000370018330000430022060000080026363000200027163000310029185600060032285600060032820251203114839.0 a9789386860538 a351.076001bGEN aGKPd_ a21 year's (1997-2017) solved papers general studies : Paper - Ibfor civil services preliminary examination 2018 aNew DelhibG.K Publicationc2018 a452 p . in various paging.c24 cm.bPB bc_ aGeneral studies acivil services preliminary f_ a_