APA Style
Vidal-Hall, Judith. (1993).
Communication Skill Guides .
Singapure:
.
Chicago Style
Vidal-Hall, Judith.
Communication Skill Guides.
Singapure:
,
1993.
Text.
MLA Style
Vidal-Hall, Judith.
Communication Skill Guides.
Singapure:
,
1993.
Text.
Turabian Style
Vidal-Hall, Judith.
Communication Skill Guides.
Singapure:
,
1993.
Print.