@book{52921,
	author = {Water Environment Federation.},
	title = {Guidelines for grit sampling and characterization.},
	publisher = {Water Environment Federation,},
	year = {2016.},
	address = {Alexandria, VA :},
	note = {"WEF Special Publication."},
	url = {https://app.knovel.com/hotlink/toc/id:kpGGSC0005/guidelines-grit-sampling/guidelines-grit-sampling}
}