Villacarlos, L. C. (2009). Happily spending old age in farming. Agriculture.
Chicagoスタイル(17版)引用形式Villacarlos, Leon C. "Happily Spending Old Age in Farming." Agriculture 2009.
MLA(9版)引用形式Villacarlos, Leon C. "Happily Spending Old Age in Farming." Agriculture, 2009.
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