Mannetje, 1984. In: State H.M., Edye L.A. (Eds.), The Biology and Agronomy of Stylosanthes, Academic Press, London, 1984, pp. I-21

Mannetje, L. 't, 1984. Considerations on the taxonomy of the genus Stylosanthes. In: State H.M., Edye L.A. (Eds.), The Biology and Agronomy of Stylosanthes, Academic Press, London, 1984, pp. I-21