Dyfyniad APA

Pugh, G., & Duffy, B. (2006). Contemporary issues in the early years (4th edition.). Sage Publications/PCP.

Dyfyniad Arddull Chicago

Pugh, Gillian, and Bernadette Duffy. Contemporary Issues in the Early Years. 4th edition. Thousand Oaks, CA: Sage Publications/PCP, 2006.

Dyfyniad MLA

Pugh, Gillian, and Bernadette Duffy. Contemporary Issues in the Early Years. 4th edition. Sage Publications/PCP, 2006.

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