Thorpe, Edgar. Thorpe, Showick. General studies paper 1 : for civil services preliminary examination, geography and environmental ecology Vol. IV - South Asia Pearson Education 2017 - vi, 4.422 - NULL . ISBN: 9789332576087 Subjects--Topical Terms: studies,paper,1,civil,preliminary,examination,,geography,ecology,Vol. Dewey Class. No.: 620.076 THO;1 R