Não informado. (2004). Health educators at work. University of North Carolina, Department of Public Health Education.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Health Educators at Work. Chapel Hill, NC: University of North Carolina, Department of Public Health Education, 2004.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Health Educators at Work. University of North Carolina, Department of Public Health Education, 2004.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.