APA Style
Langan, John,. (2006).
English skills (8th ed.).
Boston ::
McGraw-Hill.
Chicago Style
Langan, John,.
English skills.
8th ed.
Boston ::
McGraw-Hill,
2006.
.
MLA Style
Langan, John,.
English skills.
8th ed.
Boston ::
McGraw-Hill,
2006.
.
Turabian Style
Langan, John,.
English skills.
8th ed.
Boston ::
McGraw-Hill,
2006.
.