Penggayaan APA
Introduction to work study. (1978).
[s.l]:
ILO.
Chicago Style
Introduction to work study.
3.
[s.l]:
ILO,
1978.
Text.
MLA Style
Introduction to work study.
3.
[s.l]:
ILO,
1978.
Text.
Turabian Style
Introduction to work study.
[s.l]:
ILO,
1978.
Print.