Cook, C., & Waller, D. (1998). The longman handbook of modern American history 1763-1996. Longman.
Lua i Stíl Chicago (17ú heag.)Cook, Chris, agus David Waller. The Longman Handbook of Modern American History 1763-1996. New York: Longman, 1998.
Lua MLA (9ú heag.)Cook, Chris, agus David Waller. The Longman Handbook of Modern American History 1763-1996. Longman, 1998.
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