Giorgi, J. (2007). Math for water treatment operators: Practice problems to prepare for water treatment operator certification exams. American Water Works Association.
Kopierejuvvon čuohpusbeavdái
Kopieren čuohpusbeavdái ii lihkostuvvan
Chicago-čujuhus (17. p.)
Giorgi, John. Math for Water Treatment Operators: Practice Problems to Prepare for Water Treatment Operator Certification Exams. Denver, Colo.: American Water Works Association, 2007.
Kopierejuvvon čuohpusbeavdái
Kopieren čuohpusbeavdái ii lihkostuvvan
MLA-čujuhus (9. p.)
Giorgi, John. Math for Water Treatment Operators: Practice Problems to Prepare for Water Treatment Operator Certification Exams. American Water Works Association, 2007.
Kopierejuvvon čuohpusbeavdái
Kopieren čuohpusbeavdái ii lihkostuvvan
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.