Dyfyniad APA

(2007). SARS How a global epidemic was stopped.

Dyfyniad Arddull Chicago

SARS How a Global Epidemic Was Stopped. 2007.

Dyfyniad MLA

SARS How a Global Epidemic Was Stopped. 2007.

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