Sterling, T. D. (1968). Introduction to statistical data processing. Prentice-Hall.
Cita Chicago (17th ed.)Sterling, Theodor D. Introduction to Statistical Data Processing. Englewood Cliffs, N.J: Prentice-Hall, 1968.
Cita MLA (9th ed.)Sterling, Theodor D. Introduction to Statistical Data Processing. Prentice-Hall, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.