Gaya APA
S., G, T.
(2013).
Relentless (From Good to Great to Unstoppeable )
(
First)
.
USA:
Scrbner.
Gaya MLA
S., Grover, Tim.
"Relentless (From Good to Great to Unstoppeable )".
First
USA:
Scrbner,
2013.
Text.