@book{5924,
	author = {Spellman, Frank R.},
	title = {Spellman's standard handbook for wastewater operators},
	publisher = {CRC Press},
	year = {2011},
	address = {Boca Raton},
	edition = {2nd ed.},
	note = {7522 v.1; 7523 v.2; 7524 v.3}
}