DUHIGG, C. (2013). THE POWER OF HABIT: WHY WE DO WHAT WE DO AND HOW TO CHANGE. RH BOOKS.
Lua i Stíl Chicago (17ú heag.)DUHIGG, CHARLES. THE POWER OF HABIT: WHY WE DO WHAT WE DO AND HOW TO CHANGE. LONDON: RH BOOKS, 2013.
Lua MLA (9ú heag.)DUHIGG, CHARLES. THE POWER OF HABIT: WHY WE DO WHAT WE DO AND HOW TO CHANGE. RH BOOKS, 2013.
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