Boyd, 1970. Econ. Bot., 23 (1): 95-103 Document reference Boyd, C. E., 1970. Vascular aquatic plants for mineral nutrient removal from polluted waters. Econ. Bot., 23 (1): 95-103Web http://pdf.usaid.gov/pdf_docs/PNAAA635.pdfCitation key Boyd, 1970Datasheets Water hyacinth (Eichhornia crassipes)
