1. Sanitation in developing countries: preoceedings of a workshop on training held in Lobatse, Botswana,14-20 August 1980
پدیدآورنده : Sponsored by Government of the Republic of Botswana International development research centre. Canadian international Development Agency
کتابخانه: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
موضوع : Sanitary engineering - congresses ، Underdeveloped areas
رده :
TD
153
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S26