Dyfyniad APA

DUHIGG, C. (2013). THE POWER OF HABIT: WHY WE DO WHAT WE DO AND HOW TO CHANGE. RH BOOKS.

Dyfyniad Arddull Chicago

DUHIGG, CHARLES. THE POWER OF HABIT: WHY WE DO WHAT WE DO AND HOW TO CHANGE. LONDON: RH BOOKS, 2013.

Dyfyniad MLA

DUHIGG, CHARLES. THE POWER OF HABIT: WHY WE DO WHAT WE DO AND HOW TO CHANGE. RH BOOKS, 2013.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.