Dyfyniad APA

Nunnally, J. C. (1978). Psychometric theory (Second edition.). McGraw-Hill.

Dyfyniad Arddull Chicago

Nunnally, Jum C. Psychometric Theory. Second edition. New York: McGraw-Hill, 1978.

Dyfyniad MLA

Nunnally, Jum C. Psychometric Theory. Second edition. McGraw-Hill, 1978.

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