James, E. (2013). As cinquenta sombras livre. Lua de Papel.
Chicagoスタイル(17版)引用形式James, E.L. As Cinquenta Sombras Livre. Lua de Papel, 2013.
MLA(8版)引用形式James, E.L. As Cinquenta Sombras Livre. Lua de Papel, 2013.
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APA(7版)引用形式