Dyfyniad APA

Ryrie, A., & Ryrie. (2019). Unbelievers: An emotional history of doubt (First Harvard University Press Edition.). Belknap.

Dyfyniad Arddull Chicago

Ryrie, Alec, and Ryrie. Unbelievers: An Emotional History of Doubt. First Harvard University Press Edition. Cambridge: Belknap, 2019.

Dyfyniad MLA

Ryrie, Alec, and Ryrie. Unbelievers: An Emotional History of Doubt. First Harvard University Press Edition. Belknap, 2019.

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