APA (7th ed.) Citation

Barth, H., & Barth, H. (1947). Altertum und Mittelalter. Schwabe.

Chicago Style (17th ed.) Citation

Barth, Heinrich, and Heinrich Barth. Altertum Und Mittelalter. Basel: Schwabe, 1947.

MLA (8th ed.) Citation

Barth, Heinrich, and Heinrich Barth. Altertum Und Mittelalter. Schwabe, 1947.

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