Gaya APA
Leboff, Grant. (2016).
Digital selling .
London:
Kogan Page Limited.
Gaya Chicago
Leboff, Grant.
Digital selling.
London:
Kogan Page Limited,
2016.
Text.
Gaya MLA
Leboff, Grant.
Digital selling.
London:
Kogan Page Limited,
2016.
Text.
Gaya Turabian
Leboff, Grant.
Digital selling.
London:
Kogan Page Limited,
2016.
Print.