Fitzpatrick, M. (2002). Environmental health services in Europe 6: The development of professional associations. World Health Organization Regional Office for Europe.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Fitzpatrick, Martin. Environmental Health Services in Europe 6: The Development of Professional Associations. Copenhagen, Denmark: World Health Organization Regional Office for Europe, 2002.
MLA -ийн эшлэл (9 дэх хэвлэлт)Fitzpatrick, Martin. Environmental Health Services in Europe 6: The Development of Professional Associations. World Health Organization Regional Office for Europe, 2002.
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