APA (7th ed.) Citation

Solorzano & Jennifer Schmidt P.L. (1998). North star: Focus on listening and speaking intermediate. Longman.

Chicago Style (17th ed.) Citation

Solorzano and Jennifer Schmidt P.L. North Star: Focus on Listening and Speaking Intermediate. London: Longman, 1998.

MLA (8th ed.) Citation

Solorzano and Jennifer Schmidt P.L. North Star: Focus on Listening and Speaking Intermediate. Longman, 1998.