Water Pollution Control Federation. Operations & Maintenance Subcommittee Technical Practice Committee, Callier, A. J., & Hayes, R. B. J. (1983). Safety & health in wastewater systems: Manual of practice 1. Water Pollution Control Federation.
Cita Chicago Style (17a ed.)Water Pollution Control Federation. Operations & Maintenance Subcommittee Technical Practice Committee, Alan J. Callier, y R. B. Joe Hayes. Safety & Health in Wastewater Systems: Manual of Practice 1. Alexandria, Va., USA: Water Pollution Control Federation, 1983.
Cita MLA (8a ed.)Water Pollution Control Federation. Operations & Maintenance Subcommittee Technical Practice Committee, et al. Safety & Health in Wastewater Systems: Manual of Practice 1. Water Pollution Control Federation, 1983.