APA

ROYSTON A., . (2003). MY WORLD OF SCIENCE : SOFT AND HARD. : HEINEMANN LIBRARY.

Chicago

ROYSTON ANGELA, . 2003. MY WORLD OF SCIENCE : SOFT AND HARD. : HEINEMANN LIBRARY.

Harvard

ROYSTON A., . (2003). MY WORLD OF SCIENCE : SOFT AND HARD. : HEINEMANN LIBRARY.

MLA

ROYSTON ANGELA, . MY WORLD OF SCIENCE : SOFT AND HARD. : HEINEMANN LIBRARY. 2003.