Gaya APA
KRAKOW, B, K, B. (2007).
Sound Sleep Sound Mind: 7 Keys to Sleeping through the Night.-- .
Nwe Jersey:
John Wiley & Sons.
Gaya MLA
KRAKOW, Barry., KRAKOW,, Barry..
"Sound Sleep Sound Mind: 7 Keys to Sleeping through the Night.--".
Nwe Jersey:
John Wiley & Sons,
2007.
Buku.