First things first : to live, to love, to learn, to leave a legacy /

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Xehetasun bibliografikoak
Egile nagusia: Covey, Stephen R .
Beste egile batzuk: Merrill,A Roger, Merrill,Rebecca R.
Formatua: Printed Book
Argitaratua: New York : Simon , 1994.
Gaiak:
Peresonal efficiency
Self-management -Psychology
Success-Psychological aspects
Time management

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