APA
Mara D., . (1976). Sewage treatment in hot climates. John Wiley & Sons, Chichester: .
Chicago
Mara Duncan, . 1976. Sewage treatment in hot climates. John Wiley & Sons, Chichester: .
Harvard
Mara D., . (1976). Sewage treatment in hot climates. John Wiley & Sons, Chichester: .
MLA
Mara Duncan, . Sewage treatment in hot climates. John Wiley & Sons, Chichester: . 1976.