APA (7th ed.) Citation

Roberts, C. G. D. (1911). Neighbors unknown. The Macmillan company.

Chicago Style (17th ed.) Citation

Roberts, Charles G. D. Neighbors Unknown. New York: The Macmillan company, 1911.

MLA (9th ed.) Citation

Roberts, Charles G. D. Neighbors Unknown. The Macmillan company, 1911.