Dyfyniad APA

Biden, J. (2017). Promise Me, Dad: A Year of Hope, Hardship And Purpose. Macmillan.

Dyfyniad Arddull Chicago

Biden, Joe. Promise Me, Dad: A Year of Hope, Hardship And Purpose. London: Macmillan, 2017.

Dyfyniad MLA

Biden, Joe. Promise Me, Dad: A Year of Hope, Hardship And Purpose. Macmillan, 2017.

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