Water Environment Federation. (2016). Guidelines for grit sampling and characterization. Water Environment Federation.
Cita Chicago Style (17a ed.)Water Environment Federation. Guidelines for Grit Sampling and Characterization. Alexandria, VA: Water Environment Federation, 2016.
Cita MLA (8a ed.)Water Environment Federation. Guidelines for Grit Sampling and Characterization. Water Environment Federation, 2016.
Precaución: Estas citas no son 100% exactas.