Langley, R. (1979). Practical statistics: Simply explained (2. ed.). Pan Books.
Chicago Style (17th ed.) CitationLangley, Russell. Practical Statistics: Simply Explained. 2. ed. London: Pan Books, 1979.
MLA (9th ed.) CitationLangley, Russell. Practical Statistics: Simply Explained. 2. ed. Pan Books, 1979.
Warning: These citations may not always be 100% accurate.