Gaya APA

UK, Department of Transport. (1988). Corrugated steel buried structures . : s.n..

Gaya Chicago

UK, Department of Transport. Corrugated steel buried structures. : s.n., 1988. Art Original.

Gaya MLA

UK, Department of Transport. Corrugated steel buried structures. : s.n., 1988. Art Original.

Gaya Turabian

UK, Department of Transport. Corrugated steel buried structures. : s.n., 1988. Art Original.