00333naa a2200121 a 450000100080000000500110000800800410001910000190006024500560007926000090013565000160014477300510016020293532015-11-24       1971    bl ---       0--  u    #d1 aNAIR, V. K. B.  aThe present day need for rubber planting materials.  c1971  aSeringueira  tRubb Board Bull.gv. 11, n. 2, p. 63-66, 1971.