Gaya APA
Spannagel, David W.. (1974).
Effects of methods A and B backfill on flexible culverts under high fills .
:
TRB.
Gaya Chicago
Spannagel, David W..
Effects of methods A and B backfill on flexible culverts under high fills.
:
TRB,
1974.
Chart.
Gaya MLA
Spannagel, David W..
Effects of methods A and B backfill on flexible culverts under high fills.
:
TRB,
1974.
Chart.
Gaya Turabian
Spannagel, David W..
Effects of methods A and B backfill on flexible culverts under high fills.
:
TRB,
1974.
Chart.