Koll, H. (2006). Using maths: Build a skyscraper. Ticktock Media.
Chicago Style (17th ed.) CitationKoll, Hilary. Using Maths: Build a Skyscraper. Great Britain: Ticktock Media, 2006.
MLA (9th ed.) CitationKoll, Hilary. Using Maths: Build a Skyscraper. Ticktock Media, 2006.
Warning: These citations may not always be 100% accurate.