Government coal purchases under specifications
| Prif Awdur: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Manila
Bureau of Printing
1927.
|
| Cyfres: | Popular bulletin Philippines Islands, Bureau of Science
[no.] 4 |
| Pynciau: |