Dyfyniad APA

Andris Freivalds. (2008). Niebel's methods, standards & work design. McGraw-Hill.

Dyfyniad Arddull Chicago

Andris Freivalds. Niebel's Methods, Standards & Work Design. McGraw-Hill, 2008.

Dyfyniad MLA

Andris Freivalds. Niebel's Methods, Standards & Work Design. McGraw-Hill, 2008.

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