Freund, J. E., Williams, F. J., Perles, B., & Sullivan, C. (1970). Modern business statistics / by John E. Freund and Frank J. Williams (2nd ed.). Pitman.
Chicago Style (17th ed.) CitationFreund, John E., Frank J. Williams, Benjamin Perles, and Charles Sullivan. Modern Business Statistics / by John E. Freund and Frank J. Williams. 2nd ed. Pitman, 1970.
MLA (9th ed.) CitationFreund, John E., et al. Modern Business Statistics / by John E. Freund and Frank J. Williams. 2nd ed. Pitman, 1970.
Warning: These citations may not always be 100% accurate.