APA (7th ed.) Citation

Ruggles, C., & Schleiermacher, S. Angels (1922).

Chicago Style (17th ed.) Citation

Ruggles, Carl, and Steffen Schleiermacher. Angels (1922).

MLA (9th ed.) Citation

Ruggles, Carl, and Steffen Schleiermacher. Angels (1922).

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