Luteyn, J. L. 1., Churchill, S. P., Griffin, D., Gradstein, S. R. 1., Sipman, H. J., & Gavilanes A., M. R. (1999). Páramos: A checklist of plant diversity, geographical distribution and botanical literature. Bronx, N.Y.: New York Botanical Garden Press.

Luteyn, James L. 1948-, Steven P. Churchill, Dana Griffin, Stephan Robbert 1943- Gradstein, Harrie J.M Sipman, and Mauricio R. Gavilanes A. Páramos: A Checklist of Plant Diversity, Geographical Distribution and Botanical Literature. Bronx, N.Y.: New York Botanical Garden Press, 1999.

Luteyn, James L. 1948-, et al. Páramos: A Checklist of Plant Diversity, Geographical Distribution and Botanical Literature. Bronx, N.Y.: New York Botanical Garden Press, 1999.