Dyfyniad APA

Yenne, B. (2007). Guinness: The 250 year quest for the perfect pint. Hoboken, N.J: John Wiley & Sons.

Dyfyniad Arddull Chicago

Yenne, Bill. Guinness: The 250 Year Quest for the Perfect Pint. Hoboken, N.J: John Wiley & Sons, 2007.

Dyfyniad MLA

Yenne, Bill. Guinness: The 250 Year Quest for the Perfect Pint. Hoboken, N.J: John Wiley & Sons, 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.