Lua APA (7ú heag.)
Gastil, R. D., & Singer, B. (2010). The Pacific Northwest: Growth of a regional identity. McFarland & Co..
Lua i Stíl Chicago (17ú heag.)
Gastil, Raymond D., agus Barnett Singer. The Pacific Northwest: Growth of a Regional Identity. Jefferson, NC: McFarland & Co., 2010.
Lua MLA (9ú heag.)
Gastil, Raymond D., agus Barnett Singer. The Pacific Northwest: Growth of a Regional Identity. McFarland & Co., 2010.
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