«2013, no.1 »,
Eine Welt = Un seul monde = Un solo mondo. Swiss Agency for Development and Cooperation (SDC), Bern, Switzerland, 2013.
«2013-04-06»,
The Ethiopian Herald . Ethiopian Press Agency, EPA, Addis Ababa, Ethiopia, 2013.
«2013-04-10»,
The Ethiopian Herald . Ethiopian Press Agency, EPA, Addis Ababa, Ethiopia, 2013.
J. Nansi, Pezon, C., Boulenouar, J., Dubé, A., y Bassono, R.,
«Acces aux ouvrages vs acces au service d'eau potable», IRC Burkina Faso, Ouagadougou, Burkina Faso, 2013.
Wand Sanita Network,
«Access to WASH [radio programm]». Water and Sanitation Media Network, Lagos, Nigeria, 2013.
N. C. Dey, Rabbi, S. E., Karim, F., Akter, T., y Ghosh, S. C.,
«Achievements of BRAC Water, Sanitation and Hygiene Programme towards Millennium Development Goals and beyond», n.º no. 60. BRAC, Research and Evaluation Division, Dhaka, Bangladesh, p. viii, 121 p. : fig., tab., 2013.
R. Cowling y Norman, G.,
«Achieving sustainability: changing the ways in which we define success». Water & Sanitation for the Urban Poor (WSUP), IRC and Water For People, London, UK, p. 2 p., 2013.
P. Reig, Shiao, T., Owens, R., y Palochko, D.,
«Aqueduct informs Owens Corning corporate water strategy
». World Resources Institute, Washington, DC, USA, p. 11 p.; 5 tab.; 2 fig., 2013.
S. Cherif, F. Ayni, E., Jrad, A., y Trabelsi-Ayadi, M.,
«Aquifer recharge by treated wastewaters : Korba case study (Tunisia)»,
Selected contributions from the first WATERBIOTECH conference, from 9-11 October 2012 in Cairo, Egypt, pp. p. 41 - 48; 10 fig.; 1 tab.; 1 box, 2013.
S. C. B. Christensen, Arvin, E., Nissen, E., y Albrechtsen, H. - J.,
«Asellus aquaticus as a potential carrier of escherichia coli and other coliform bacteria into drinking water distribution systems»,
International journal of environmental research and public health [Int. J. Environ. Res. Public Health], pp. p. 845 - 855; 1 fig.; 2 tab., 2013.
R. Baum, Kayser, G. L., Stauber, C., y Sobsey, M.,
«Assessing the Microbial Quality of Improved Drinking Water Sources: Results from the Dominican Republic», vol. vol. 90, n.º no. 1 , pp. p. 121-123, 2013.