Cita APA (7th ed.)

Mattson, D. E. (1981). Statistics: Difficult concepts, understandable explanations. Mosby.

Cita Chicago (17th ed.)

Mattson, Dale E. Statistics: Difficult Concepts, Understandable Explanations. St. Louis: Mosby, 1981.

Cita MLA (9th ed.)

Mattson, Dale E. Statistics: Difficult Concepts, Understandable Explanations. Mosby, 1981.