Reference: Yasugi 2003

Yasugi, Yoshiho. 2003. Materiales de lenguas Mayas de Guatemala. Endangered Languages of the Pacific Rim, Faculty of Informatics, Osaka~….

@book{yasugi2003mayas,
  author    = {Yasugi, Yoshiho},
  publisher = {Endangered Languages of the Pacific Rim, Faculty of Informatics, Osaka~…},
  title     = {Materiales de lenguas Mayas de Guatemala},
  year      = {2003}
}