Dyfyniad APA

Birch, D., & Worley, P. (2014). Provocations: Philosophy for secondary school. Crown House Publishing Limited.

Dyfyniad Arddull Chicago

Birch, David, and Peter Worley. Provocations: Philosophy for Secondary School. Bancyfelin, Camarthen, Wales, [England]: Crown House Publishing Limited, 2014.

Dyfyniad MLA

Birch, David, and Peter Worley. Provocations: Philosophy for Secondary School. Crown House Publishing Limited, 2014.

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