Spinden, H. J., & Thompson, E. S. A study of maya art: Its subject matter and historical development.
Lua i Stíl Chicago (17ú heag.)Spinden, Herbert J., agus Eric S. Thompson. A Study of Maya Art: Its Subject Matter and Historical Development.
Lua MLA (8ú heag.)Spinden, Herbert J., agus Eric S. Thompson. A Study of Maya Art: Its Subject Matter and Historical Development.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.