Cita APA (7a ed.)

Ehnfeld, S., & Littauer, S. B. (1964). Introduction to statistical method. McGraw-Hill Book company.

Cita Chicago Style (17a ed.)

Ehnfeld, Sylvian, y Sebastian B. Littauer. Introduction to Statistical Method. New York: McGraw-Hill Book company, 1964.

Cita MLA (9a ed.)

Ehnfeld, Sylvian, y Sebastian B. Littauer. Introduction to Statistical Method. McGraw-Hill Book company, 1964.