Ralph, J. (2015). A practical introduction to index numbers. John Wiley & Sons, Ltd.
Chicago Style (17th ed.) CitationRalph, Jeff. A Practical Introduction to Index Numbers. Chichester, West Sussex, United Kingdom: John Wiley & Sons, Ltd, 2015.
MLA (9th ed.) CitationRalph, Jeff. A Practical Introduction to Index Numbers. John Wiley & Sons, Ltd, 2015.
Warning: These citations may not always be 100% accurate.