Gaya APA
Powlison, D. (2010).
I'm Exhausted: What to Do When You're Always Tired: CCEF .
Greensboro:
New Growth Press.
Gaya MLA
Powlison, David.
"I'm Exhausted: What to Do When You're Always Tired: CCEF".
Greensboro:
New Growth Press,
2010.
Karya Cetak.