Gaya APA
Christopher Peterson,. (2011).
Designing Positive Psychology .
:
.
Gaya Chicago
Christopher Peterson,.
Designing Positive Psychology.
:
,
2011.
Text.
Gaya MLA
Christopher Peterson,.
Designing Positive Psychology.
:
,
2011.
Text.
Gaya Turabian
Christopher Peterson,.
Designing Positive Psychology.
:
,
2011.
Print.