Cita APA (7a ed.)
The Open University. (2007). Environmental control and public health: Block 3 water pollution control. The Open University.
Cita Chicago Style (17a ed.)
The Open University. Environmental Control and Public Health: Block 3 Water Pollution Control. United Kingdom: The Open University, 2007.
Cita MLA (9a ed.)
The Open University. Environmental Control and Public Health: Block 3 Water Pollution Control. The Open University, 2007.
Precaución: Estas citas no son 100% exactas.