Dyfyniad APA

Ministry of education and training. English for students of biology.

Dyfyniad Arddull Chicago

Ministry of education and training. English for Students of Biology.

Dyfyniad MLA

Ministry of education and training. English for Students of Biology.

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