Frielink, A. B. (1965). Economics of automatic data processing: Papers presented at the international symposium organized by the International Computation Centre, Rome, October 19-22, 1965. Amsterdam: North-Holland Pub. Co.
Trích dẫn kiểu ChicagoFrielink, A. B. Economics of Automatic Data Processing: Papers Presented At the International Symposium Organized By the International Computation Centre, Rome, October 19-22, 1965. Amsterdam: North-Holland Pub. Co, 1965.
Trích dẫn MLAFrielink, A. B. Economics of Automatic Data Processing: Papers Presented At the International Symposium Organized By the International Computation Centre, Rome, October 19-22, 1965. Amsterdam: North-Holland Pub. Co, 1965.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.