Illich, John Ilich · J. I. · John I · John Ilich John
| title | ISBN-13 | year of publication |
|---|---|---|
| Art and Skill of Successful Negotiation | 978-0-13-046722-5 | 1979 |
| Gane Negociando Facil ! | 978-970-17-0038-9 | 1997 |
| The art and skill of successful negotiation | 978-0-13-046805-5 | 1973 |
| The Complete Idiot's Guide to Winning Through Negotiation | 978-0-02-861037-5 | 1996 |
| Wygrywanie negocjacji dla zóltodziobów | 978-83-7120-783-9 |
Macmillan · Prentice Hall · Rebis