TY  - BOOK
AU  - Ury, William,
TI  - Getting past no: negotiating your way from confrontation to cooperation 
SN  - 0553371312
AV  - BF637.N4 U79 1993
PY  - 1993///
CY  - New York
PB  - Bantam
KW  - Negociación
ER  -