APA (7th ed.) Citation

Preiss, S., Boyd, F. A., & Numrich, C. (1999). Northstar: Focus on listening and speaking : advanced. Teacher's manual. Longman.

Chicago Style (17th ed.) Citation

Preiss, Sherry, Frances Armstrong Boyd, and Carol Numrich. Northstar: Focus on Listening and Speaking : Advanced. Teacher's Manual. New York: Longman, 1999.

MLA (9th ed.) Citation

Preiss, Sherry, et al. Northstar: Focus on Listening and Speaking : Advanced. Teacher's Manual. Longman, 1999.