In a working-group draft of ISO-639-3 written in 2001 (URL accessed 2006-4-24 [1]), the code GRJ was assigned to the "Jabo language", while the code GEU was applied to the coordinate taxon "Glebo".
loc.gov
memory.loc.gov
"Map of Liberia / compiled from data on file in the office of the American Colonization Society, under the direction of the Revd. W. McLain, secy., by R. Coyle."
1845. Library of Congress, URL accessed on 2006-04-24 at [3].
sil.org
ISO 639-3 "Scope of denotation for language identifiers"[2].
