Knowles, S., & Servátka, M. Giving to Charity, But Only If You Have Time.
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Citação norma Chicago
Knowles, Stephen, and Maroš Servátka. Giving to Charity, But Only If You Have Time.
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Citação norma MLA
Knowles, Stephen, and Maroš Servátka. Giving to Charity, But Only If You Have Time.
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Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.