Gaya APA

Niebel, B, W, N, B, W., Freivalds, A, F, A. (2003). Methods,Standards, and Work Design.-- (Ed.11.--). America: McGraw-Hill.

Gaya MLA

Niebel, Benjamin, W., Niebel,, Benjamin, W.., Freivalds, Andris, Freivalds,, Andris. "Methods,Standards, and Work Design.--". Ed.11.-- America: McGraw-Hill, 2003. Buku.