Water Environment Federation. Task Force on Safety and Health in Wastewater Systems, Water Environment Federation. Operations and Maintenence Subcommittee, & Sims Jr, A. H. (1994). Safety and health in wastewater systems. Water Environment Federation.
Cita Chicago Style (17a ed.)Water Environment Federation. Task Force on Safety and Health in Wastewater Systems, Water Environment Federation. Operations and Maintenence Subcommittee, y Andrew H. Sims Jr. Safety and Health in Wastewater Systems. Alexandria, Va.: Water Environment Federation, 1994.
Cita MLA (8a ed.)Water Environment Federation. Task Force on Safety and Health in Wastewater Systems, et al. Safety and Health in Wastewater Systems. Water Environment Federation, 1994.
Precaución: Estas citas no son 100% exactas.