Dyfyniad APA

Alfaro Vargas, R. (2016). The cateories of “the abstract” and “the concrete”.

Dyfyniad Arddull Chicago

Alfaro Vargas, Roy. The Cateories of “the Abstract” and “the Concrete”. 2016.

Dyfyniad MLA

Alfaro Vargas, Roy. The Cateories of “the Abstract” and “the Concrete”. 2016.

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