Wolf, F. L. (1974). Elements of probability and statistics (2nd ed.). McGraw-Hill.
Cita Chicago (17th ed.)Wolf, Frank L. Elements of Probability and Statistics. 2nd ed. New York: McGraw-Hill, 1974.
Cita MLA (9th ed.)Wolf, Frank L. Elements of Probability and Statistics. 2nd ed. McGraw-Hill, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.