"Vectors" and other critters in the sewers

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Friench Simpson, "Rat Proofing a Municipal Sewer System: A Report of an Investigation to Find a Practical Method of Rat Proofing the Sewer System of San Francisco," Public Health Reports, Vol. XXVII, No. 44 (31 Oct. 1913), pp. 2283-2289.

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For Reference:
Everything you ever wanted to know about crocodiles in the sewers can be found at sewergator.com.

   


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