(2001). Human Factor(HF), Standardization for Universal Communications Identification Solutions. European Telecommunications Standards Institute.
Citácia podle Chicago (17th ed.)Human Factor(HF), Standardization for Universal Communications Identification Solutions. [S.l.]: European Telecommunications Standards Institute, 2001.
Citácia podľa MLA (8th ed.)Human Factor(HF), Standardization for Universal Communications Identification Solutions. European Telecommunications Standards Institute, 2001.
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