Gaya APA

Blass, B, A. et al (1969). A Provisional Survey of Materials for the Study of Neglected Languages . Washington D.C.: Center for Applied Linguistics.

Gaya MLA

Blass, Birgit, A.. et al. "A Provisional Survey of Materials for the Study of Neglected Languages". Washington D.C.: Center for Applied Linguistics, 1969. Text.