Dyfyniad APA

Turnbull, R. (1999). Explanations and implications of the 1997 amendments ... Merrill.

Dyfyniad Arddull Chicago

Turnbull, Rud. Explanations and Implications of the 1997 Amendments ... New Jersey: Merrill, 1999.

Dyfyniad MLA

Turnbull, Rud. Explanations and Implications of the 1997 Amendments ... Merrill, 1999.

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