Dyfyniad APA

Jenkin. (2009). William and Lawrence Bragg, father and son. OUP.

Dyfyniad Arddull Chicago

Jenkin. William and Lawrence Bragg, Father and Son. OUP, 2009.

Dyfyniad MLA

Jenkin. William and Lawrence Bragg, Father and Son. OUP, 2009.

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