Παραπομπή APA

Stevenson, D. K. (1998). American life and institutions. Washington, D.C: United States Department of State.

Παραπομπή Chicago Style

Stevenson, Douglas K. American Life and Institutions. Washington, D.C: United States Department of State, 1998.

Παραπομπή MLA

Stevenson, Douglas K. American Life and Institutions. Washington, D.C: United States Department of State, 1998.

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