Soil samplingtechnical engineering and design guides as adapted from the US Army Corps of Engineers, No. 30
Wedi'i Gadw mewn:
| Fformat: | Referensi |
|---|---|
| Iaith: | Asing |
| Cyhoeddwyd: |
ASCE
2000
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| Pynciau: | |
| Tagiau: |
Ychwanegu Tag
Dim Tagiau, Byddwch y cyntaf i dagio'r cofnod hwn!
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