Template:Anunciação et al., 2007
- Anunciação, E.A., Costa, C.B., Cortés, R., Delprete, P.G., Kirkbride, J.H., Persson, C., Steyermark, J.A. (†), Taylor, C.M., Vincentini, A. & Zappi, D. 2007. Rubiaceae. In Funk, V., Hollowell, T., Berry, P., Kelloff, C. & Alexander, S.N., Checklist of the plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contributions from the United States National Herbarium 55: 479–507. BHL