Biblio

A. Biran, Schmidt, W. - P., Zeleke, L., Emukule, H., Khay, H., Parker, J., and Peprah, D., “Hygiene and sanitation practices amongst residents of three long-term refugee camps in Thailand, Ethiopia and Kenya”, Tropical medicine and international health, pp. p. 1133 - 1141, 2012.

M. Madigan, Martinko, J. M., and Parker, J., Biología de los microorganismos. Madrid, Spain: S.n., 1999, p. 490 p. : tab., graphics, photos.

J. Parker, “Water for Sarajevo”, Waterlines, an international journal of water, sanitation and waste, pp. p. 11-13: photogr., 1994.