Proceedings of the Twelfth International Congress of Photogrammetry Actes du Douzieme Congress International de Photogrammetrie
| Awduron Corfforaethol: | , |
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| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Ottawa
Committee of the Xllth international. Congress of Photogrammetry
1972.
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| Cyfres: | International Archives of Photogrammetry
v. 19. |
| Pynciau: |