Gaya APA
An Introduction to Sociolinguistics. (1947).
:
.
Gaya Chicago
An Introduction to Sociolinguistics.
Ed.3.
:
,
1947.
.
Gaya MLA
An Introduction to Sociolinguistics.
Ed.3.
:
,
1947.
.
Gaya Turabian
An Introduction to Sociolinguistics.
:
,
1947.
.