Royster, J. J., & Lester, M. (1996). Close Writer's choice grammar workbook. 11. Glencoe.
Chicago Style aipamenaRoyster, Jacqueline Jones, and Mark Lester. Close Writer's Choice Grammar Workbook. 11. New York: Glencoe, 1996.
MLA aipamenaRoyster, Jacqueline Jones, and Mark Lester. Close Writer's Choice Grammar Workbook. 11. Glencoe, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.