魏棻卿. (2018). 心怀正向的信念: Have positive beliefs. 青岛出版社.
Lua i Stíl Chicago (17ú heag.)魏棻卿. 心怀正向的信念: Have Positive Beliefs. 青岛出版社, 2018.
Lua MLA (8ú heag.)魏棻卿. 心怀正向的信念: Have Positive Beliefs. 青岛出版社, 2018.
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