Gaya APA
Market Leader. (2007).
Edinburgh, Scotland, UK:
Pearson Longman.
Gaya Chicago
Market Leader.
.
Edinburgh, Scotland, UK:
Pearson Longman,
2007.
Text.
Gaya MLA
Market Leader.
.
Edinburgh, Scotland, UK:
Pearson Longman,
2007.
Text.
Gaya Turabian
Market Leader.
Edinburgh, Scotland, UK:
Pearson Longman,
2007.
Print.