Elderton, W. P., Johnson, N. L., & Elderton, W. P. (1969). Systems of frequency curves. London: Cambridge University Press.
Chicago Style CitationElderton, William Palin, Norman Lloyd Johnson, and William Palin Elderton. Systems of Frequency Curves. London: Cambridge University Press, 1969.
MLA CitationElderton, William Palin, Norman Lloyd Johnson, and William Palin Elderton. Systems of Frequency Curves. London: Cambridge University Press, 1969.
Warning: These citations may not always be 100% accurate.