Rentería, Norma Paola Meléndez, Ramón Silva-Vázquez, Guadalupe Virginia Nevárez Morrillón, Cristóbal Noé Aguilar, and Raúl Rodríguez Herrera. 2010. “Genetic Diversity of Mexican Oregano Lippia Berlandieri Schauer, from the Chihuahuan Desert Area”. Plant Breeding and Seed Science 62 (December):85-96. http://ojs.ihar.edu.pl/index.php/pbss/article/view/574.