HAYS, W. L. (1967). Quantification in psychology. Brooks/Cole Pub. Co.
Chicago Style aipamenaHAYS, William L. Quantification in Psychology. Belmont: Brooks/Cole Pub. Co, 1967.
MLA aipamenaHAYS, William L. Quantification in Psychology. Brooks/Cole Pub. Co, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.