APA Style
Napa, Pieter A.. (1991).
Vocabulary Development Skills .
Yogyakarta:
Kanisius.
Chicago Style
Napa, Pieter A..
Vocabulary Development Skills.
Yogyakarta:
Kanisius,
1991.
Text.
MLA Style
Napa, Pieter A..
Vocabulary Development Skills.
Yogyakarta:
Kanisius,
1991.
Text.
Turabian Style
Napa, Pieter A..
Vocabulary Development Skills.
Yogyakarta:
Kanisius,
1991.
Print.