Should you use this website in research that culminates in a publication, please cite it in the bibliography or references section of that publication as follows:

Vail, Gabrielle, and Christine Hernández  
2005   The Maya Hieroglyphic Codices, Version 2.0. A website and database available online at: www.doaks.org/pc_research_projects.html (supercedes 2002, version 1.0 on  November 1, 2005). Also available at www.mayacodices.org.