

@booklet {11078,
	title = {Waste stabilization ponds for waste water treatment, anaerobic pond.},
	year = {2011},
	publisher = {The College of Engineering at Iowa State University.},
	url = {http://home.eng.iastate.edu/~tge/ce421-521/Fernando\%20J.\%20Trevino\%20Quiroga.pdf},
	author = {Quiroga, F. J.}
}
