Não informado. (2004). Health educators at work. University of North Carolina, Department of Public Health Education.
Citação do estilo Chicago (17ª ed.)Não informado. Health Educators at Work. Chapel Hill, NC: University of North Carolina, Department of Public Health Education, 2004.
Citação MLA (8ª ed.)Não informado. Health Educators at Work. University of North Carolina, Department of Public Health Education, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.