共 4 条
[1]
Borelli, Peccerillo, Planning and development of the Gulf of Naples “clean-up” project, Ingegneria Ambientale, 11, pp. 558-567, (1983)
[2]
Department of Employment “Gazette”, (1987)
[3]
Standard Industrial Classification, (1980)
[4]
Indexes to the International Standard Industrial Classification of All Economic Activities, U.N. Statistical Papers Series M No 4, (1976)