Cita APA (7th ed.)
Elzey, F. F. (1971). A programmed introduction to statistics (2nd ed.). Wardsworth.
Cita Chicago (17th ed.)
Elzey, Freeman F. A Programmed Introduction to Statistics. 2nd ed. Califonia: Wardsworth, 1971.
Cita MLA (9th ed.)
Elzey, Freeman F. A Programmed Introduction to Statistics. 2nd ed. Wardsworth, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.