ROYSTON ANGELA. (2019). MY WORLD OF SCIENCE NATURAL AND MAN MADE (2018 Ed.). HEINEMANN LIBRARY.
芝加哥风格引文ROYSTON ANGELA. MY WORLD OF SCIENCE NATURAL AND MAN MADE. 2018 Ed. MINNESOTA: HEINEMANN LIBRARY, 2019.
MLA引文ROYSTON ANGELA. MY WORLD OF SCIENCE NATURAL AND MAN MADE. 2018 Ed. HEINEMANN LIBRARY, 2019.
警告：这些引文格式不一定是100％准确.