APA aipamena

Solórzano, H. S., Numrich, C., & Boyd, F. (2006). NorthStar: Building skills for the TOEFL iBT High Intermediate. Teacher's manual with ETS scoring guide. White Plains, NY: Pearson Longman.

Chicago Style aipamena

Solórzano, Helen S., Carol Numrich, và Frances Boyd. NorthStar: Building Skills for the TOEFL IBT High Intermediate. Teacher's Manual With ETS Scoring Guide. White Plains, NY: Pearson Longman, 2006.

MLA aipamena

Solórzano, Helen S., Carol Numrich, và Frances Boyd. NorthStar: Building Skills for the TOEFL IBT High Intermediate. Teacher's Manual With ETS Scoring Guide. White Plains, NY: Pearson Longman, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.