336284 Mara, D. D. (1996). Low-cost urban sanitation. Chichester : John Wiley & Sons.
Chicago-čujuhus (17. p.)336284 Mara, D. Duncan. Low-cost Urban Sanitation. Chichester : John Wiley & Sons, 1996.
MLA-čujuhus (9. p.)336284 Mara, D. Duncan. Low-cost Urban Sanitation. Chichester : John Wiley & Sons, 1996.
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