Johnson, Orville E., Stephen H. Levinson and Wheeler, Alva. 1990. Gramática secoya. Cuadernos Etnolingü'isticos. 13–19.
@article{2059_johnsoneta1990,
author = {Johnson, Orville E., Stephen H. Levinson and Wheeler, Alva},
journal = {Cuadernos Etnolingü'isticos},
number = {11},
pages = {13–19},
title = {Gramática secoya},
year = {1990}
}