na INLIS000000000025757 Ind 0010-1218007595 Symposium on the impact of man on humid tropics vegetation: paper presented at the symposium, Goroko, Territory of Papua New Guinea, September 1960 SYMPOSIUM ON THE IMPACT OF MAN ON HUMID TROPICS VEGETATION (1960 : Goroko) UNESCO UNESCO Goroko UNESCO 1960 401 p. : ill. ; 24 cm. 401 p. : ill. ; 24 cm. 551.558.3SYMs 551.558.3 VEGETATION HUMID TROPICS 1175/63