Gaya APA
Lavallee, D. et al (2004).
Sport Psychology: Contemporary Themes (1st).
United States of America:
PALGRAVE MACMILLAN.
Gaya MLA
Lavallee, David. et al.
"Sport Psychology: Contemporary Themes".
1st
United States of America:
PALGRAVE MACMILLAN,
2004.
Text.