Gonzalez, M.; Ott, R.L. & Chukanov, V.Middle Urals` pollution prevention priorities assessment project,
article,
September 13, 1995;
California.
(https://digital.library.unt.edu/ark:/67531/metadc623799/m1/3/:
accessed July 16, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.