Gaya APA
campbell, jeff. ().
USA .
San Francisco, CA, USA:
lonely planet.
Gaya Chicago
campbell, jeff.
USA.
San Francisco, CA, USA:
lonely planet,
.
Text.
Gaya MLA
campbell, jeff.
USA.
San Francisco, CA, USA:
lonely planet,
.
Text.
Gaya Turabian
campbell, jeff.
USA.
San Francisco, CA, USA:
lonely planet,
.
Print.