Não informado. (1986). Civil Engineering Practice. Boston Society of Civil Engineers.
Chicago (17e ed.) BronvermeldingNão informado. Civil Engineering Practice. Boston, Mass: Boston Society of Civil Engineers, 1986.
MLA (8e ed.) BronvermeldingNão informado. Civil Engineering Practice. Boston Society of Civil Engineers, 1986.
Let op: Deze citaties zijn niet altijd 100% accuraat.