Ulrich, Matthew et al. 1986. Mopan Maya Verbs. Guatemala: Summer Institute of Linguistics.
@book{Ulrich-et-al-1986, address = {Guatemala}, author = {Ulrich, Matthew et al.}, publisher = {Summer Institute of Linguistics}, title = {Mopan Maya Verbs}, year = {1986}, iso_code = {mop}, olac_field = {typology; general_linguistics; syntax}, wals_code = {mop} }