Dyfyniad APA
Cowan, L., & Guinness, O. (1998). Invitation to the classics. Baker Books.
Dyfyniad Arddull Chicago
Cowan, Louise, and Os Guinness. Invitation to the Classics. Grand Rapids, Mich.: Baker Books, 1998.
Dyfyniad MLA
Cowan, Louise, and Os Guinness. Invitation to the Classics. Baker Books, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.