APA (7th ed.) Citation

Ruthenberg, V., & Heese, W. (1968). Nationalgalerie (2., erw. Aufl.). Seemann.

Chicago Style (17th ed.) Citation

Ruthenberg, Vera, and Walter Heese. Nationalgalerie. 2., erw. Aufl. Leipzig: Seemann, 1968.

MLA (9th ed.) Citation

Ruthenberg, Vera, and Walter Heese. Nationalgalerie. 2., erw. Aufl. Seemann, 1968.

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