Proceedings of the 9th symposium on plantation crops: 5-7 December 1990(PLACROSYM, IX, 1990)

Proceedings of the 9th symposium on plantation crops: 5-7 December 1990(PLACROSYM, IX, 1990) text xx Kasargod ISPC 1992 9999 monographic und Crop management Medicinal plants intercropping rubber anatomy Rubber market 633(06)1990 PLA.9;1 220204