Fielding, R., Lam, W. W., Ho, E. Y., Lam, T. H., Hedley, A. J., & Leung, G. M. (2005). Avian Influenza Risk Perception, Hong Kong. Centers for Disease Control and Prevention.

Fielding, Richard, Wendy W.T Lam, Ella Y.Y Ho, Tai Hing Lam, Anthony J. Hedley, och Gabriel M. Leung. Avian Influenza Risk Perception, Hong Kong. Centers for Disease Control and Prevention, 2005.

Fielding, Richard, et al. Avian Influenza Risk Perception, Hong Kong. Centers for Disease Control and Prevention, 2005.