Hiebert, L. D. (1972). Risk, tenure, and resource allocation in low income agriculture. University of Wisconsin.
Lua i Stíl Chicago (17ú heag.)Hiebert, Larry Dean. Risk, Tenure, and Resource Allocation in Low Income Agriculture. [Madison, Wisconsin]: University of Wisconsin, 1972.
Lua MLA (9ú heag.)Hiebert, Larry Dean. Risk, Tenure, and Resource Allocation in Low Income Agriculture. University of Wisconsin, 1972.
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