Leong, Goh Cheng . Human and economic geography / Goh Cheng Leong, Gillian C.Morgan. - 2nd ed / . - New Delhi : Oxford University Press , 1973. - xxiv,662p. : ill.,figs.,table ; 27cm . NULL ISBN: 019582816X Rs. 275.00 Subjects--Index Terms: GEOGRAPHY, ECONOMIC Dewey Class. No.: 330.9 / LEO/H