| title | ISBN-13 | year of publication |
|---|---|---|
| It's Up to You | 978-0-7175-0611-8 | 1973 |
| Living with Other People | 978-0-7175-0648-4 | 1974 |
| Taking Stock | 978-0-7175-0646-0 | 1973 |
| Use of the Law | 978-0-7175-0647-7 | 1974 |
| Working with Other People | 978-0-7175-0649-1 | 1974 |
C. G. · C.G. Martin · C. Griffiths · C.M. · C. Martin · Charles G. · Charles Griffiths · Charles M. · Charles Martin · G.M. · G. Martin · Griffiths Martin