THORPE (Edgar);THORPE (Showick) General studies: paper-1 for the civil services preliminary examination: Vol 4 general science - Delhi Pearson 2016 - vi,4.413 PB - 4 . ISBN: 978-93-325-5871-7 Subjects--Topical Terms: GeneralGeneral Knowledge Dewey Class. No.: 032.02 / THOG