Instructions for building triangulation towers /
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| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Ottawa :
Department of the Interior, Canada,
1923.
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| Series: | Publication (Geodetic Survey of Canada) ;
no. 10. |
| Subjects: |
| Item Description: | Cover title: Field instructions : primary triangulation. |
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| Physical Description: | 39 p. : ill. ; 26 cm. |