Sperling, Marcos Von Biological wastewater treatment in warm climate regions / Marcos von Sperling and Carlos Augusto de Lemos Chenicharo - United Kingdom : IWA Publishing, 2005 - 2 v. (xix, 1460 p.) : ill. ; 25 cm. ISBN: 1843390027 (Vol. 1) RM776.25 1843391074 (Vol. 2) Subjects--Topical Terms: Sewage--Purification--Biological treatmentSewage--Purification--Tropical conditions