Dyfyniad APA

Spencer, L. M. (1993). Competence at Work (11th.). McGraw-Hill.

Dyfyniad Arddull Chicago

Spencer, Lyle M. Competence at Work. 11th. Singapore: McGraw-Hill, 1993.

Dyfyniad MLA

Spencer, Lyle M. Competence at Work. 11th. McGraw-Hill, 1993.

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