URBAN HYGIENE
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BTWASTE MANAGEMENT AND URBAN HYGIENE
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BTPUBLIC HEALTH, PUBLIC HEALTH INSPECTORS
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BTENVIRONMENTAL HYGIENE (ENVIRONMENTAL PROTECTION)
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UDC628.42/.46
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Descriptor GERSTÄDTEHYGIENE
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Descriptor ENGURBAN HYGIENE
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Descriptor FREHYGIÈNE URBAINE
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Variant GERHYGIENE/STÄDTEHYGIENE
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Variant ENGHYGIENE/URBAN HYGIENE
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NTURBAN CLEANSING AND REFUSE DISPOSAL