Fitzpatrick, F. L. (1963). Our animal resources: Animals and their economic importance. Holt, Rinehart and Winston.
Lua i Stíl Chicago (17ú heag.)Fitzpatrick, Frederick L. Our Animal Resources: Animals and Their Economic Importance. New York: Holt, Rinehart and Winston, 1963.
Lua MLA (8ú heag.)Fitzpatrick, Frederick L. Our Animal Resources: Animals and Their Economic Importance. Holt, Rinehart and Winston, 1963.
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