Environmental protection - Russia (Federation) - Kaliningradskaia oblast.

Terrestrial and inland water environment of the Kaliningrad Region = environmental studies in the Kaliningrad Region / by: (Electronic resources)

Ecology- Russia(Federation)

Geochemistry.

Hydrology/Water Resources.

Hydrology- Russia (Federation)

Environment.

Kaliningradskaya oblast(Russia)- Environmental conditions.

Environmental Chemistry.

Fresh water- Russia (Federation)

Environmental chemistry- Russia (Federation)

Environmental protection- Russia (Federation)

Geochemistry- Russia (Federation)

Marine & Freshwater Sciences.