APA (7th ed.) Citation

Theissing, H. (1952). Der Kostbare Ring. St. Benno.

Chicago Style (17th ed.) Citation

Theissing, Heinrich. Der Kostbare Ring. Leipzig: St. Benno, 1952.

MLA (8th ed.) Citation

Theissing, Heinrich. Der Kostbare Ring. St. Benno, 1952.