| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Swaziland: Contemporary Social and Economic Issues | 978-1-138-72758-8 (1-138-72758-X) | 2017 | Bongani J. Nsibande |
| The Esperanto Movement | 978-90-279-3399-7 (90-279-3399-5) | 1982 | |
| The Experanto Movement | 978-99938-31-78-5 (99938-31-78-6) | 1982 | |
G *** F · G. Forster · P.F. · P Forster · P.G. · Peter F. · Peter Forster · Peter G. · Peter G. Dr Forster