Gibson, N. J. (1977). Economic activity in Ireland. Dublin: Gill & Macmillan.
Trích dẫn kiểu ChicagoGibson, Norman J. Economic Activity in Ireland. Dublin: Gill & Macmillan, 1977.
MLA citiranjeGibson, Norman J. Economic Activity in Ireland. Dublin: Gill & Macmillan, 1977.
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