20. stor 1 [vynechat] aquatic ecology 1 [vynechat] dejiny 1 [vynechat] ekohydrológia 1 [vynechat] environmental management 1 [vynechat] environmentálny manažment 1 [vynechat] hydrosféra 1 [vynechat] hydrosphere 1 [vynechat] kinematografia 1 [vynechat] rock 1 [vynechat] rockoví hudobníci 1 [vynechat] svetová kinematografia 1 [vynechat] vodné zdroje 1 [vynechat] water catchment areas 1 [vynechat]