APA (7th ed.) Citation

Oertel, L. (1920). Tonkünstler-Album. Oertel.

Chicago Style (17th ed.) Citation

Oertel, Louis. Tonkünstler-Album. Hannover: Oertel, 1920.

MLA (9th ed.) Citation

Oertel, Louis. Tonkünstler-Album. Oertel, 1920.

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