APA

Waro C., Burum M. & Summer Institute of Linguistics. (1980). Aypapayu'um'um ekawen. Brasília: Summer Institute of Linguistics.

Chicago

Waro Cirilo, Burum Martinho and Summer Institute of Linguistics. 1980. Aypapayu'um'um ekawen. Brasília: Summer Institute of Linguistics.

Harvard

Waro C., Burum M. and Summer Institute of Linguistics. (1980). Aypapayu'um'um ekawen. Brasília: Summer Institute of Linguistics.

MLA

Waro Cirilo, Burum Martinho and Summer Institute of Linguistics. Aypapayu'um'um ekawen. Brasília: Summer Institute of Linguistics. 1980.