Citazione Stile APA (7a Edizione)

Niebel, B. W., & Freivalds, A. (2014). Niebel's methods, standards, and work design (Thirteenth edition.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Niebel, Benjamin W., e Andris Freivalds. Niebel's Methods, Standards, and Work Design. Thirteenth edition. New York, NY: McGraw-Hill, 2014.

Citatione MLA (9a ed.)

Niebel, Benjamin W., e Andris Freivalds. Niebel's Methods, Standards, and Work Design. Thirteenth edition. McGraw-Hill, 2014.