For citations:

Prishchepa A.I. Quality of Drinking Water in the Cities of Khanty-Mansi Autonomous Okrug — Yugra (1960s — 1990s). Surgut State Pedagogical University Bulletin. 2022;(6 (81)):92-98. (In Russ.) https://doi.org/10.26105/SSPU.2022.81.6.010