Thorpe,Edgar, & Thorpe,Showick. (2019). General Studies for Civil services preliminary examination-Paper-1 Vol.1. Pearson.
Chicago Stili AlıntıThorpe,Edgar, ve Thorpe,Showick. General Studies for Civil Services Preliminary Examination-Paper-1 Vol.1. Noida: Pearson, 2019.
MLA AlıntıThorpe,Edgar, ve Thorpe,Showick. General Studies for Civil Services Preliminary Examination-Paper-1 Vol.1. Pearson, 2019.
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