APA (7th ed.) Citation

Bernau, C. A. (1910). The international genealogical Directory. Bernau.

Chicago Style (17th ed.) Citation

Bernau, Charles A. The International Genealogical Directory. Walton-on-Thames, Engl.: Bernau, 1910.

MLA (8th ed.) Citation

Bernau, Charles A. The International Genealogical Directory. Bernau, 1910.