Lumpkin, 1987. In: IRRI, Azolla utilization. Proc. Workshop on AzoIla Use, Fuzhou, Fujian, China 31 March-5 April 1985, 89-97

Lumpkin, T. A., 1987. Environmental requirements for successful Azolla growth. In: IRRI, Azolla utilization. Proc. Workshop on AzoIla Use, Fuzhou, Fujian, China 31 March-5 April 1985, 89-97