| 000 | 00442 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aCottle, H.C. | |
| 245 | 1 |
_aVulcanization tests _bInvestigatin at the imperial institute of samples of plantation para rubber from Ceylon prepared in ecnnection with rubber research scheme |
|
| 260 |
_aColombo _c1918 |
||
| 300 | _a1-14 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aInvestigation Ceylon Department of Agriculture. Bulletin No. 35 | ||
| 901 | _aS54893 | ||
| 999 |
_c113091 _d113091 |
||