Courland Province

        Military statistical survey of the Russian Empire. T. 7, part 1: Courland province.
St. Petersburg: in the printing house of the Department of the General Staff, 1848-1858. 1848.

РНБ

        Materials for geography and statistics of Russia, collected by officers of the General Staff. Courland province.
St. Petersburg: [Main Directorate of the General Staff], 1859-. 1862.

ЦВМБ