Hart, F. e. a. (1982). Multi Storey Buildings In Steel F. Hart, W Henn And H. Sontag. Collins.
Lua i Stíl Chicago (17ú heag.)Hart, F... et.. al. Multi Storey Buildings In Steel F. Hart, W Henn And H. Sontag. Collins, 1982.
Lua MLA (8ú heag.)Hart, F... et.. al. Multi Storey Buildings In Steel F. Hart, W Henn And H. Sontag. Collins, 1982.
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