APA
Ash C., . (1993). The probability tutoring book. Piscataway, New Jersey: John Wiley.
Chicago
Ash Carol, . 1993. The probability tutoring book. Piscataway, New Jersey: John Wiley.
Harvard
Ash C., . (1993). The probability tutoring book. Piscataway, New Jersey: John Wiley.
MLA
Ash Carol, . The probability tutoring book. Piscataway, New Jersey: John Wiley. 1993.