000 00312 am a2200121 a 4500
100 1 _aPetch, T.
245 1 _aTapping of an old hevea tree at henaratgoda
260 _aCeylon
_c1914
300 _a1-4 p.
942 _2udc
_cB
440 _aTree Ceylon Department of Agriculture. Bulletin No. 13
901 _aS58397
999 _c101396
_d101396