APA-čujuhus (7. p.)

Kocher Jodi, Skipton Sharon, Dvorak Bruce, Niemeyer Shirley, & University of Nebraska Lincoln. Drinking water treatment , water softening (Ion exchange).

Chicago-čujuhus (17. p.)

Kocher Jodi, Skipton Sharon, Dvorak Bruce, Niemeyer Shirley, juo University of Nebraska Lincoln. Drinking Water Treatment , Water Softening (Ion Exchange).

MLA-čujuhus (9. p.)

Kocher Jodi, et al. Drinking Water Treatment , Water Softening (Ion Exchange).

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