Não informado. (1940). Sewage works engineering and municipal sanitation. Case Shepperd Mann.
Chicago-viite (17. p.)Não informado. Sewage Works Engineering and Municipal Sanitation. New York: Case Shepperd Mann, 1940.
MLA-viite (8. p.)Não informado. Sewage Works Engineering and Municipal Sanitation. Case Shepperd Mann, 1940.
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