Gaya APA
Pearson Technology Group April 2004. ().
Pearson:
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Gaya Chicago
Pearson Technology Group April 2004.
.
Pearson:
,
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Gaya MLA
Pearson Technology Group April 2004.
.
Pearson:
,
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Gaya Turabian
Pearson Technology Group April 2004.
Pearson:
,
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