Citazione APA

Guilford, J. P. (1954). Psychometric methods/2e (2nd ed.). McGraw-Hill.

Stile di citazione Chicago

Guilford, J. P. Psychometric Methods/2e. 2nd ed. Bombay: McGraw-Hill, 1954.

Citazione MLA

Guilford, J. P. Psychometric Methods/2e. 2nd ed. McGraw-Hill, 1954.