APA
Spiegel M. R., .Schaum's outline of theory and Problems of Statistics. New York: McGraw-Hill.
Chicago
Spiegel Murray R, .Schaum's outline of theory and Problems of Statistics. New York: McGraw-Hill.
Harvard
Spiegel M. R., .Schaum's outline of theory and Problems of Statistics. New York: McGraw-Hill.
MLA
Spiegel Murray R, .New York: McGraw-Hill. .