APA aipamena

Frazier, L., & Mills, R. Northstar: Listening and speaking (3a ed.).

Chicago Style aipamena

Frazier, Laurice, and Robin Mills. Northstar: Listening and Speaking. 3a ed.

MLA aipamena

Frazier, Laurice, and Robin Mills. Northstar: Listening and Speaking. 3a ed.

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