TY - BOOK AU - Bolton J TI - The response of immature Hevea brasiliensis to fertilisers in Malaya 1. Experiments on shale-derived soils PY - 1964/// PB - Journal of the Rubber Research Institute of Malaya KW - Fertilisers KW - Hevea brasiliensis KW - Malaya KW - Shale-derived soils ER -