Gaya APA
Kent, Peter. (2012).
Search engine optimization for dummies .
Singapore:
John Wiley & sons.
Gaya Chicago
Kent, Peter.
Search engine optimization for dummies.
Singapore:
John Wiley & sons,
2012.
Text.
Gaya MLA
Kent, Peter.
Search engine optimization for dummies.
Singapore:
John Wiley & sons,
2012.
Text.
Gaya Turabian
Kent, Peter.
Search engine optimization for dummies.
Singapore:
John Wiley & sons,
2012.
Print.