Dyfyniad APA

ROYSTON ANGELA. (2019). MY WORLD OF SCIENCE NATURAL AND MAN MADE (2018 Ed.). HEINEMANN LIBRARY.

Dyfyniad Arddull Chicago

ROYSTON ANGELA. MY WORLD OF SCIENCE NATURAL AND MAN MADE. 2018 Ed. MINNESOTA: HEINEMANN LIBRARY, 2019.

Dyfyniad MLA

ROYSTON ANGELA. MY WORLD OF SCIENCE NATURAL AND MAN MADE. 2018 Ed. HEINEMANN LIBRARY, 2019.

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