a concise overview of the subject for the state Civil services Preliminary examination optional Paper Pradhan, Arabinda creator Bandhopadhyay, Brishti Vidya,R Ahir, Rajiv text New Delhi Spectrum Books 2017 monographic Various Pagings : 24cm(pbk) (maps) contribution by Brishti Bandhopadhyay, R. Vidya [and] Rajiv Ahir 954 9788179306253 8179306259 ENG-117324 DBAD/PUB 20170223172744.0