Philippine inventions : a catalogue of inventions, utility models and creative resources / compiled by the Philippine Invention Teamof the Rural Transformation Project.
| Định dạng: | Sách |
|---|---|
| Ngôn ngữ: | Filipino |
| Được phát hành: |
Quezon City
Human Settlements Program, Development Academy of the Philippines
c1975.
|
| Những chủ đề: |