(1969). Specification for the use of structural steel in building. British Standards Institution.
Chicago Stili AlıntıSpecification for the Use of Structural Steel in Building. London: British Standards Institution, 1969.
MLA AlıntıSpecification for the Use of Structural Steel in Building. British Standards Institution, 1969.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..