Gaya APA
Introduction work study. (1992).
:
International Labour Office Jenewa.
Gaya Chicago
Introduction work study.
.
:
International Labour Office Jenewa,
1992.
Text.
Gaya MLA
Introduction work study.
.
:
International Labour Office Jenewa,
1992.
Text.
Gaya Turabian
Introduction work study.
:
International Labour Office Jenewa,
1992.
Print.