CASE, K. E. (1994). Principles Of Economics Karl E. Case And Ray C. Fair. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)CASE, Karl E. Principles Of Economics Karl E. Case And Ray C. Fair. Prentice-Hall, 1994.
Lua MLA (8ú heag.)CASE, Karl E. Principles Of Economics Karl E. Case And Ray C. Fair. Prentice-Hall, 1994.
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