APA (7th ed.) Citation

Jettmar, K. (1964). The Slab with a Ram’s Head in the Rietberg Museum.

Chicago Style (17th ed.) Citation

Jettmar, Karl. The Slab with a Ram’s Head in the Rietberg Museum. 1964.

MLA (8th ed.) Citation

Jettmar, Karl. The Slab with a Ram’s Head in the Rietberg Museum. 1964.

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