Fitzpatrick, M. (2002). Environmental health services in Europe 6: The development of professional associations. World Health Organization Regional Office for Europe.
Cytowanie według stylu Chicago (wyd. 17)Fitzpatrick, Martin. Environmental Health Services in Europe 6: The Development of Professional Associations. Copenhagen, Denmark: World Health Organization Regional Office for Europe, 2002.
Cytowanie według stylu MLA (wyd. 9)Fitzpatrick, Martin. Environmental Health Services in Europe 6: The Development of Professional Associations. World Health Organization Regional Office for Europe, 2002.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..