Gaya APA
Chalker, Sylvia, Davy, Derek. (1979).
Advanced English course .
London:
Linguaphone Institute .
Gaya Chicago
Chalker, Sylvia, Davy, Derek.
Advanced English course.
London:
Linguaphone Institute ,
1979.
Text.
Gaya MLA
Chalker, Sylvia, Davy, Derek.
Advanced English course.
London:
Linguaphone Institute ,
1979.
Text.
Gaya Turabian
Chalker, Sylvia, Davy, Derek.
Advanced English course.
London:
Linguaphone Institute ,
1979.
Print.