| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Geometry of Nonlinear Field Theories | 978-9971-5-OO79-5 (9971-5-OO79-5) | 1986 |
R. P. · Robert Perišić · Robert Perschke · Robert Pirsig · Robert Prazak · Roberta Procacci · Roberto Persico · Roberto Porzecanski · Rupert Purchase