"kozlovsky, e a. "
"geology and the environment, an international manual in: three volumes/ e.a. kozlovsky" - 1 ed. - france : unesco 1988. - ", 179p.; 24 cm."
QE38 / .G46 1989
"geology and the environment, an international manual in: three volumes/ e.a. kozlovsky" - 1 ed. - france : unesco 1988. - ", 179p.; 24 cm."
QE38 / .G46 1989