Gaya APA
Lang, Amanda. (2012).
The power of why .
Toronto:
Collins.
Gaya Chicago
Lang, Amanda.
The power of why.
Toronto:
Collins,
2012.
Text.
Gaya MLA
Lang, Amanda.
The power of why.
Toronto:
Collins,
2012.
Text.
Gaya Turabian
Lang, Amanda.
The power of why.
Toronto:
Collins,
2012.
Print.