Wasta, Stephanie A. 1993. Guarani and Spanish usage in two rural first-grade Paraguayan classrooms: a study in bilingualism. (Doctoral dissertation, University of Iowa).
@phdthesis{47700, author = {Wasta, Stephanie A.}, school = {University of Iowa}, title = {Guarani and Spanish usage in two rural first-grade Paraguayan classrooms: a study in bilingualism}, year = {1993} }