The Caspian Sea Encyclopedia, Igor S. Zonn, Andrey Kostianoy, Aleksey N. Kosarev, Michael Glantz, Springer, 2010, ISBN 978-3-642-11523-3, ... Balkanabat (formerly Nebit-Dag) – the administrative center of the Balkansky velajat in Turkmenistan. It was founded in 1933 as a worker's settlement (Neftedag or 'oil mountain') ...
