WOLL, P. (1987). American Goverment Reading And Cases Peter Woll. Brow and Company.
Lua i Stíl Chicago (17ú heag.)WOLL, Peter. American Goverment Reading And Cases Peter Woll. Brow and Company, 1987.
Lua MLA (8ú heag.)WOLL, Peter. American Goverment Reading And Cases Peter Woll. Brow and Company, 1987.
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