Kowalski, W. (2009). Health Care Facilities. Ultraviolet Germicidal Irradiation Handbook.
Čikaški stil citiranjaKowalski, Wladyslaw. "Health Care Facilities." Ultraviolet Germicidal Irradiation Handbook 2009.
MLA način citiranjaKowalski, Wladyslaw. "Health Care Facilities." Ultraviolet Germicidal Irradiation Handbook 2009.
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