Gaya APA
Freivalds, B, N, &, A. (1999).
Methods Standards & Work Design/Benjamin Niebel (^a10 ^bJilid 1).
Boston:
McGraw-Hill.
Gaya MLA
Freivalds, Benjamin, Niebel, &, Andris.
"Methods Standards & Work Design/Benjamin Niebel".
^a10 ^bJilid 1
Boston:
McGraw-Hill,
1999.
Text.