APA (7th ed.) Citation

Smith, G. A., & Groschke, H. (1900). Henry Drummond. Warneck.

Chicago Style (17th ed.) Citation

Smith, George Adam, and H. Groschke. Henry Drummond. Berlin: Warneck, 1900.

MLA (9th ed.) Citation

Smith, George Adam, and H. Groschke. Henry Drummond. Warneck, 1900.