(1970). Catalogue of IEC publications 1975: Copmlete to 31 December 1974. Geneva, Switzerland: Central Office of the International Electrotechnical Commission.
Παραπομπή Chicago StyleCatalogue of IEC Publications 1975: Copmlete to 31 December 1974. Geneva, Switzerland: Central Office of the International Electrotechnical Commission, 1970.
Παραπομπή MLACatalogue of IEC Publications 1975: Copmlete to 31 December 1974. Geneva, Switzerland: Central Office of the International Electrotechnical Commission, 1970.
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