Dyfyniad APA

Vries,A D. (2015). R Programming for Dummies (2nd Ed.). John Wiley.

Dyfyniad Arddull Chicago

Vries,A D. R Programming for Dummies. 2nd Ed. New Jersey: John Wiley, 2015.

Dyfyniad MLA

Vries,A D. R Programming for Dummies. 2nd Ed. John Wiley, 2015.

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