Cita APA (7th ed.)
Edwards, A. L. (1967). Statistical methods (2nd ed.). Holt, Rinehart.
Cita Chicago (17th ed.)
Edwards, Allen L. Statistical Methods. 2nd ed. San Francisco: Holt, Rinehart, 1967.
Cita MLA (9th ed.)
Edwards, Allen L. Statistical Methods. 2nd ed. Holt, Rinehart, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.