Gaya APA
Ferret, P, H, E.
(2007).
Introduction to health and safety at work
(
Edisi 3)
.
:
Elseivier Inc.
Gaya MLA
Ferret, Phil, Hughes,, Ed.
"Introduction to health and safety at work".
Edisi 3
:
Elseivier Inc,
2007.
Text.