APA Style
Vocabulary in practice 6: 40 units of self study vocabulary exercises with test. (2005).
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Chicago Style
Vocabulary in practice 6: 40 units of self study vocabulary exercises with test.
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,
2005.
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MLA Style
Vocabulary in practice 6: 40 units of self study vocabulary exercises with test.
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:
,
2005.
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Turabian Style
Vocabulary in practice 6: 40 units of self study vocabulary exercises with test.
:
,
2005.
.