Structural design data and specifications
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Quezon City
Ken
c1980.
|
| Rhifyn: | 6th ed. |
| Pynciau: |
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Quezon City
Ken
c1980.
|
| Rhifyn: | 6th ed. |
| Pynciau: |