APA (7th ed.) Citation

Nigg, W. (1991). Hedwig von Schlesien. Echter.

Chicago Style (17th ed.) Citation

Nigg, Walter. Hedwig Von Schlesien. Würzburg: Echter, 1991.

MLA (9th ed.) Citation

Nigg, Walter. Hedwig Von Schlesien. Echter, 1991.

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