एपीए उद्धरण

(2003). Our country's regions. New York: Macmillan/McGraw-Hill.

शिकागो स्टाइल उद्धरण

Our Country's Regions. New York: Macmillan/McGraw-Hill, 2003.

एमएलए उद्धरण

Our Country's Regions. New York: Macmillan/McGraw-Hill, 2003.