Oasis Environmental Ltd. [Wastewater treatment glossary].
Chicago-čujuhus (17. p.)Oasis Environmental Ltd. [Wastewater Treatment Glossary].
MLA-čujuhus (9. p.)Oasis Environmental Ltd. [Wastewater Treatment Glossary].
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.