Cita APA (7th ed.)

Walpole, R. E. (1968). Introduction to statistics/ by Ronald E. Walpole. London: Collier-Macmillan.

Cita Chicago (17th ed.)

Walpole, Ronald E. Introduction to Statistics/ by Ronald E. Walpole. New York: Macmillan: London: Collier-Macmillan, 1968.

Cita MLA (9th ed.)

Walpole, Ronald E. Introduction to Statistics/ by Ronald E. Walpole. London: Collier-Macmillan, 1968.