Robert Wauchope; Howard Francis Cline; Charles Gibson; H. B. Nicholson, Tulane University. Middle American Research Institute, eds. (2015). Handbook of Middle American Indians: Volumes 14 and 15, Guide to ethnohistorical Sources Parts 3 and 4. Austin: University of Texas Press. ISBN978-1-4773-0687-1. OCLC974489206
Maarten E. R.; G. N. Jansen; Luis Reyes García, eds. (1993). Códice Vaticano B.3773. Madrid: Sociedad Estatal Quinto Centenario. ISBN968-16-4155-8. OCLC1101345811
Maarten E. R.; G. N. Jansen; Luis Reyes García, eds. (1993). Códice Vaticano B.3773. Madrid: Sociedad Estatal Quinto Centenario. ISBN968-16-4155-8. OCLC1101345811
Boone, Elizabeth Hill (2007). Cycles of time and meaning in the Mexican books of fate 1st ed. Austin: University of Texas Press. pp. 251–252. ISBN978-0-292-79528-0. OCLC646760625