APA Style
Langan , John. (1998).
College Writing Skills third Edition .
:
.
Chicago Style
Langan , John.
College Writing Skills third Edition.
:
,
1998.
.
MLA Style
Langan , John.
College Writing Skills third Edition.
:
,
1998.
.
Turabian Style
Langan , John.
College Writing Skills third Edition.
:
,
1998.
.