Thapa, M. (1997). Bacteriological study of water and its treatment using plant products.
Chicago-referens (17:e uppl.)Thapa, Manoj. Bacteriological Study of Water and Its Treatment Using Plant Products. 1997.
MLA-referens (8:e uppl.)Thapa, Manoj. Bacteriological Study of Water and Its Treatment Using Plant Products. 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.