Gaya APA
Sontag, F, H, ;, W, H, ;, H.
(1978).
Multi-storey buildings in steel
.
London:
Granada.
Gaya MLA
Sontag, Franz, Hart, ;, Walter, Henn, ;, Hansjurgen.
"Multi-storey buildings in steel".
London:
Granada,
1978.
Text.