Spack, R. (1998). Guidelines: A cross-cultural reading/writing text (2nd ed.). New York: St. Martin's Press.
Trích dẫn kiểu ChicagoSpack, Ruth. Guidelines: A Cross-cultural Reading/writing Text. 2nd ed. New York: St. Martin's Press, 1998.
Deismireacht MLASpack, Ruth. Guidelines: A Cross-cultural Reading/writing Text. 2nd ed. New York: St. Martin's Press, 1998.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.