na INLIS000000000003112 20210519133538 210519||||||||| | ||| |||| || | 010-0521003112 en 633.91(100)/KNO/w 633.91(100)/KNO/w K.E. Knorr World rubber and its regulation California Stanord Universty Press 1945 x, 265 p.: ill.; 23 cm + index RUBBER -- WORLD MARKETS -- REGULATIONS