Gaya APA
Seal, Bernard. (1987).
Vocabulary builder 1 .
England:
Longman.
Gaya Chicago
Seal, Bernard.
Vocabulary builder 1.
England:
Longman,
1987.
Text.
Gaya MLA
Seal, Bernard.
Vocabulary builder 1.
England:
Longman,
1987.
Text.
Gaya Turabian
Seal, Bernard.
Vocabulary builder 1.
England:
Longman,
1987.
Print.