TY  - BOOK
AU  - Covey,Stephen R
TI  - The seven habits of highly effective people: restoring the character ethic 
SN  - 0671663984
U1  - 158 
PY  - 1990///, c1989
CY  - New York
PB  - Simon & Schuster
KW  - Carácter
KW  - Éxito
KW  - Aspectos psicológicos
N1  - Fotocopia
ER  -