Rzedowski, J., Calderón de Rzedowski, G., & Zamudio, S. (2012). The vascular plants endemic in the state of Queretaro. I. Preliminary numerical analysis and definition of areas of concentration of the restricted-range species. Instituto de Ecología, A.C.
Chicago-referens (17:e uppl.)Rzedowski, Jerzy, Graciela Calderón de Rzedowski, och Sergio Zamudio. The Vascular Plants Endemic in the State of Queretaro. I. Preliminary Numerical Analysis and Definition of Areas of Concentration of the Restricted-range Species. Instituto de Ecología, A.C, 2012.
MLA-referens (9:e uppl.)Rzedowski, Jerzy, et al. The Vascular Plants Endemic in the State of Queretaro. I. Preliminary Numerical Analysis and Definition of Areas of Concentration of the Restricted-range Species. Instituto de Ecología, A.C, 2012.
