Παραπομπή APA

Torgerson, W. S. (1958). Theory and methods of scaling. John wiley &Sons.

Παραπομπή Chicago Style

Torgerson, Warren S. Theory and Methods of Scaling. New York: John wiley &Sons, 1958.

Παραπομπή MLA

Torgerson, Warren S. Theory and Methods of Scaling. John wiley &Sons, 1958.