Cita APA (7th ed.)

Miller, J. L., & Cohen, R. F. (1998). NorthStar: Focus on reading and writing, advanced. Longman.

Cita Chicago (17th ed.)

Miller, Judy L., i Robert F. Cohen. NorthStar: Focus on Reading and Writing, Advanced. Nueva York: Longman, 1998.

Cita MLA (9th ed.)

Miller, Judy L., i Robert F. Cohen. NorthStar: Focus on Reading and Writing, Advanced. Longman, 1998.