Dyfyniad APA

Weinberger, D., & Harrison, P. (2011). Preface to the 3rd Edition. Wiley-Blackwell.

Dyfyniad Arddull Chicago

Weinberger, DR, and P. Harrison. Preface to the 3rd Edition. Wiley-Blackwell, 2011.

Dyfyniad MLA

Weinberger, DR, and P. Harrison. Preface to the 3rd Edition. Wiley-Blackwell, 2011.

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