Original Costa Rican Sign Language
[aka Old Costa Rican Sign Language,]Classification: Sign Language
·critically endangered
Classification: Sign Language
·critically endangered
Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·
Personal Communication on sign languages . James Woodward (2012) ·
Glottolog . http://www.glottolog.org/glottolog/
Lenguas en peligro en Costa Rica: Vitalidad, documentatión y descripción ( pp. 219-250 ) . Carlos Sánchez Avendaño (2013) · Artes y Letras. XXXVII (1) ·