APA (7th ed.) Citation

Stein, G. (1991). Burgruine Hardenburg.

Chicago Style (17th ed.) Citation

Stein, Günter. Burgruine Hardenburg. Mainz, 1991.

MLA (9th ed.) Citation

Stein, Günter. Burgruine Hardenburg. 1991.

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