Firth, L. (1989). How things work : a question-and-answer book about science, technology and nature / general editor Lesley Firth: A question-and-answer book about science, technology and nature (Rev. ed.). Kingfishers.
Chicago Style (17th ed.) CitationFirth, Lesley. How Things Work : A Question-and-answer Book About Science, Technology and Nature / General Editor Lesley Firth: A Question-and-answer Book About Science, Technology and Nature. Rev. ed. London: Kingfishers, 1989.
MLA (9th ed.) CitationFirth, Lesley. How Things Work : A Question-and-answer Book About Science, Technology and Nature / General Editor Lesley Firth: A Question-and-answer Book About Science, Technology and Nature. Rev. ed. Kingfishers, 1989.
Warning: These citations may not always be 100% accurate.