Não informado. (1978). The Structural Engineer. Institution of Structural Engineers.
Chicago (17e ed.) BronvermeldingNão informado. The Structural Engineer. London: Institution of Structural Engineers, 1978.
MLA (8e ed.) BronvermeldingNão informado. The Structural Engineer. Institution of Structural Engineers, 1978.
Let op: Deze citaties zijn niet altijd 100% accuraat.