Harrison, Beppie. The marshall cavendish illustrated encyclopaedia of discovery and exploration / edited by Beppie Harrison and John Mason. - New York : Marshal Cavendish , 1990. - V.17 : ill.,figs.,maps ; 27cm . NULL ISBN: 1854351141 Rs. 85.00 Subjects--Index Terms: DISCOVERIES (IN GEOGRAPHY) EXPLORATION Dewey Class. No.: 910.9 / HAR/M