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Normal görünüm
MARC görünümü
- Perko, Howard A.
Perko, Howard A. (Personal Name)
Perko, Howard A. Helical piles, c2009: ECIP t.p. (Howard A. Perko, Ph. D., P.E)
Perko, Howard A. Helical piles, c2009: ECIP t.p. (Howard A. Perko, Ph. D., P.E)
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