What you need to know about reading signs, directories, schedules, maps, charts & utility bills
| Prif Awdur: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Lincolnwood, Ill.
National Textbook
1989.
|
| Rhifyn: | 2nd ed. |
| Pynciau: |