HILL,h.s. Elementary Trignometry H.S.Hill - Noida: g.k, 2010. - 438p.: 24x12cm.+ 6055. ISBN: 9788183553933 Subjects--Topical Terms: MATHRMATICSelemantary TrigonmetryKNIGHT,s.r Dewey Class. No.: 516.24