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Gaya APA
ROI at work : best-practice case studies from the real world. (2007).
Alexandria:
ASTD Press.
Gaya Chicago
ROI at work : best-practice case studies from the real world.
.
Alexandria:
ASTD Press,
2007.
Text.
Gaya MLA
ROI at work : best-practice case studies from the real world.
.
Alexandria:
ASTD Press,
2007.
Text.
Gaya Turabian
ROI at work : best-practice case studies from the real world.
Alexandria:
ASTD Press,
2007.
Print.