APA Style
Duarte, J.
(2011).
Bilingual Language Proficiency (e-book)
(
volume 1)
.
Germany:
Waxmann Verlag GmbH.
MLA Style
Duarte, Joana.
"Bilingual Language Proficiency (e-book)".
volume 1
Germany:
Waxmann Verlag GmbH,
2011.
Computer File.