En
RuGeographical location. Physical geography
Geographical location. Physical geography
Essay of the Nizhny Novgorod province in historical and geographical terms
Ovchinnikov, Mikhail Vasilyevich (1847-1893). Essay of the Nizhny Novgorod province in historical and geographical terms. Nizhny Novgorod: Typography of Provincial Government, 1885.
1885
РГБ
The Red Book of the Nizhny Novgorod Region. T.1. Animals.-2 nd ed. Pererab. and additional.
The Red Book of the Nizhny Novgorod Region. T.1. Animals.-2 nd ed. Pererab. and additional 2014.
2001
Министерство экологии и природных ресурсов Нижегородской области