Gaya APA
Selig, Ernest T.. (1989).
Polyethylene Pipe Under High Fill .
:
TRB.
Gaya Chicago
Selig, Ernest T..
Polyethylene Pipe Under High Fill.
:
TRB,
1989.
Chart.
Gaya MLA
Selig, Ernest T..
Polyethylene Pipe Under High Fill.
:
TRB,
1989.
Chart.
Gaya Turabian
Selig, Ernest T..
Polyethylene Pipe Under High Fill.
:
TRB,
1989.
Chart.