Dyfyniad APA

ROYSTON ANGELA. (2019). MY WORLD OF SCIENCE HUMAN GROWTH (2018 Ed.). HEINEMANN LIBRARY.

Dyfyniad Arddull Chicago

ROYSTON ANGELA. MY WORLD OF SCIENCE HUMAN GROWTH. 2018 Ed. MINNESOTA: HEINEMANN LIBRARY, 2019.

Dyfyniad MLA

ROYSTON ANGELA. MY WORLD OF SCIENCE HUMAN GROWTH. 2018 Ed. HEINEMANN LIBRARY, 2019.

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