1. Plant responses to atmospheric sulphur;Agrawal,2003
2. Sulfur isotope homogeneity of oceanic DMSP and DMS;Amrani;P. Natl. Acad. Sci. USA,2013
3. Sulphur distribution and redistribution in vegetative and generative plants;Anderson,2003
4. Geological outline;Barr,1981
5. The Natural Vegetation of Trinidad;Beard,1946