Institution of Civil Engineers (Great Britain). (1969). An introduction to engineering economics. (Great George St., S.W.1), Institution of Civil Engineers.
Chicago-referens (17:e uppl.)Institution of Civil Engineers (Great Britain). An Introduction to Engineering Economics. London: (Great George St., S.W.1), Institution of Civil Engineers, 1969.
MLA-referens (8:e uppl.)Institution of Civil Engineers (Great Britain). An Introduction to Engineering Economics. (Great George St., S.W.1), Institution of Civil Engineers, 1969.
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