| title | ISBN-13 (ISBN-10)  | year of publica- tion  | other author(s) | 
|---|---|---|---|
| The Law of Collective Agreements in the Countries of the European Community | 978-92-825-5012-0 (92-825-5012-5)  | 1984 | G. C. Perone | 
| Trattato di diritto del lavoro: 9 | 978-88-13-30873-5 (88-13-30873-6)  | 2011 | |