Gaya APA
Sperlings, Dave. (1999).
Internetactivity : Workbook .
Amerika:
Longman Group Limited.
Gaya Chicago
Sperlings, Dave.
Internetactivity : Workbook.
Amerika:
Longman Group Limited,
1999.
Text.
Gaya MLA
Sperlings, Dave.
Internetactivity : Workbook.
Amerika:
Longman Group Limited,
1999.
Text.
Gaya Turabian
Sperlings, Dave.
Internetactivity : Workbook.
Amerika:
Longman Group Limited,
1999.
Print.