Gaya APA

Hymes, D., Gumperz, J, J. (1972). Directions in sociolinguistics: the ethnography of communication . New York: Holt, Rinehart and Winston, Inc..

Gaya MLA

Hymes, Dell., Gumperz, John, J.. "Directions in sociolinguistics: the ethnography of communication". New York: Holt, Rinehart and Winston, Inc., 1972. Text.