Jeffrey, J. R., & Nash, G. B. a. (1990). The American people: Creating a nation and a society (2nd.ed.). Harper & Row.
Lua i Stíl Chicago (17ú heag.)Jeffrey, Julie Roy, agus Gary B.[et al] Nash. The American People: Creating a Nation and a Society. 2nd.ed. Grand Rapids: Harper & Row, 1990.
Lua MLA (9ú heag.)Jeffrey, Julie Roy, agus Gary B.[et al] Nash. The American People: Creating a Nation and a Society. 2nd.ed. Harper & Row, 1990.
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