Gaya APA
Communicating Efectively
.
(2015).
:
.
Gaya Chicago
Communicating Efectively
.
Ed. 8.
:
,
2015.
Text.
Gaya MLA
Communicating Efectively
.
Ed. 8.
:
,
2015.
Text.
Gaya Turabian
Communicating Efectively
.
:
,
2015.
Print.