APA (7th ed.) Zitazioa

Riley, J. G. A Study of American Beers and Ales.

Chicago Style (17th ed.) Zitazioa

Riley, James Garfield. A Study of American Beers and Ales.

MLA (9th ed.) Zitazioa

Riley, James Garfield. A Study of American Beers and Ales.

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