APA Citation

Ludat, H. (1965). The medieval empire and the early Piast state. Historical studies, 6.

Chicago Style Citation

Ludat, Herbert. "The Medieval Empire and the Early Piast State." Historical Studies, 6 1965.

MLA Citation

Ludat, Herbert. "The Medieval Empire and the Early Piast State." Historical Studies, 6 1965.

Warning: These citations may not always be 100% accurate.