Gaya APA
Bednar, , L. (1989).
Durability of Plain Galvanized Steel Drainage Pipe in South America : Criteria for Selection .
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TRB.
Gaya MLA
Bednar, , Lawrence.
"Durability of Plain Galvanized Steel Drainage Pipe in South America : Criteria for Selection".
:
TRB,
1989.
Chart.