Dyfyniad APA

Freeman, F. S. (1950). Theory and pratice of psychological lesting/3e (3rd ed.). Oxford &IBH publishing company.

Dyfyniad Arddull Chicago

Freeman, Frank S. Theory and Pratice of Psychological Lesting/3e. 3rd ed. Bombay: Oxford &IBH publishing company, 1950.

Dyfyniad MLA

Freeman, Frank S. Theory and Pratice of Psychological Lesting/3e. 3rd ed. Oxford &IBH publishing company, 1950.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.