na INLIS000000000004273 20231123013601 0010-1118004273 231123 g 0 eng Proceedings of the twenty-ninth assembly of the International Rubber Study Group, 21 November - 29 November 1985, Abijan / International Rubber Study Group ASSEMBLY OF THE INTERNATIONAL RUBBER STUDY GROUP (29th: 1985: Abijan) London : The Secretariat of the International Rubber Study Group, 1986 iii, 150 p. : ill. ; 30 cm. 633.91(063) HEVEA BRASILIENSIS RUBBER CROPS RUBBER INDUSTRY TRADE RESEARCH 633.91(063) ASS p 305/95