Gaya APA

Tanka, J., Baker, L, R. (2002). Interachons 2 listening/speaking (4th edition). New York: mcgraw-hill cotemporary.

Gaya MLA

Tanka, Judith., Baker, Lida, R.. "Interachons 2 listening/speaking". 4th edition New York: mcgraw-hill cotemporary, 2002. Text.