Jan Forstrom. (2008). Excellent English: Language skills for success. New York, NY: McGraw-Hill.
Čikaški stil citiranjaJan Forstrom. Excellent English: Language Skills for Success. New York, NY: McGraw-Hill, 2008.
MLA način citiranjaJan Forstrom. Excellent English: Language Skills for Success. New York, NY: McGraw-Hill, 2008.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.