Lua APA (7ú heag.)

Bruce L. Gardner and Gordon C. Rausser. (2002). Agricultural and Food Policy. ELSEVIER.

Lua i Stíl Chicago (17ú heag.)

Bruce L. Gardner and Gordon C. Rausser. Agricultural and Food Policy. ELSEVIER, 2002.

Lua MLA (8ú heag.)

Bruce L. Gardner and Gordon C. Rausser. Agricultural and Food Policy. ELSEVIER, 2002.

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