Gaya APA
GLOBAL DIGITAL OUTLOOK 2019. (2019).
s.l.:
s.n..
Gaya Chicago
GLOBAL DIGITAL OUTLOOK 2019.
.
s.l.:
s.n.,
2019.
Text.
Gaya MLA
GLOBAL DIGITAL OUTLOOK 2019.
.
s.l.:
s.n.,
2019.
Text.
Gaya Turabian
GLOBAL DIGITAL OUTLOOK 2019.
s.l.:
s.n.,
2019.
Print.