TY - BOOK AU - Spellman,Frank R. AU - Drinan,Joanne TI - Pumping T2 - Fundamentals for the water & wastewater maintenance operator series SN - 1587160145 AV - TJ919 S54 U1 - 621.6/9 21 PY - 2001/// CY - Lancaster, Pennsylvania PB - Technomic KW - Bombas centrífugas KW - Bombas alternativas KW - Hidráulica ER -