Boyd, 1969. Econ. Bot., 23 (2): 123-127 Document reference Boyd, C. E., 1969. The nutritive value of three species of water weeds. Econ. Bot., 23 (2): 123-127Web http://www.jstor.org/stable/4253030Citation key Boyd, 1969Datasheets Water hyacinth (Eichhornia crassipes)