| 000 | 00439 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aCottle, H.C. | |
| 245 | 1 |
_aVulcanizatin tests _bInvestigations at the institute of samples of plantation para rubber from Ceylon prepared in eonnection with the rubber research scheme |
|
| 260 |
_aColombo _c1917 |
||
| 300 | _a1-8 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aResearch, Plant Ceylon Department of Agriculture. Bulletin No. 32 | ||
| 901 | _aS54890 | ||
| 999 |
_c113086 _d113086 |
||