Gaya APA

Gage, R. (c2006). Why you're dumb, sick, & broke-- and how to get smart, healthy, & rich! . nju: John Wiley & Sons, Inc..

Gaya MLA

Gage, Randy.. "Why you're dumb, sick, & broke-- and how to get smart, healthy, & rich!". nju: John Wiley & Sons, Inc., c2006. Buku.