Gaya APA
Napa, Pieter A. (1991).
Vocabulary development skils .
Yogyakarta:
.
Gaya Chicago
Napa, Pieter A.
Vocabulary development skils.
Yogyakarta:
,
1991.
Text.
Gaya MLA
Napa, Pieter A.
Vocabulary development skils.
Yogyakarta:
,
1991.
Text.
Gaya Turabian
Napa, Pieter A.
Vocabulary development skils.
Yogyakarta:
,
1991.
Print.