na INLIS000000000003138 20241220084930 0010-0521003138 241220 g 0 eng 634.614 633.833/RUT/i RUTGERS, A.A.L. Investigations on oil palms / A.A.L. Rutgers Batavia : Ruygrok & Co., 1922 vi, 125 p. : ill. ; 25 cm. ELAEIS GUINEENSIS OIL PALMS INVESTIGATIONS 634.614 RUT i