Gaya APA
4000 Essential English Words 6. ().
London:
Nation Paul.
Gaya Chicago
4000 Essential English Words 6.
.
London:
Nation Paul,
.
Text.
Gaya MLA
4000 Essential English Words 6.
.
London:
Nation Paul,
.
Text.
Gaya Turabian
4000 Essential English Words 6.
London:
Nation Paul,
.
Print.