TY - BOOK TI - RUBBER DEVELOPMENTS SN - 0035-9483 CY - UK PB - Malaysian Rubber Producers Research Association, Hertford, England N1 - Ending Volume & Year: 50, 1997; Missing Volume: 1(1,3,6)13;14;16(1);27(2-3);32;50(3-4); Starting Volume & Year: 1, 1946 ER -