Gaya APA
Dobson, A. (1997).
Grolier Business Library : How to Communicate at Work (Deluxe Ed.).
Hong Kong:
Grolier International Inc..
Gaya MLA
Dobson, Ann.
"Grolier Business Library : How to Communicate at Work".
Deluxe Ed.
Hong Kong:
Grolier International Inc.,
1997.
Text.