APA (7th ed.) Citation

Riis, J. A. (1915). The children of the poor. C. Scribner's Sons.

Chicago Style (17th ed.) Citation

Riis, Jacob A. The Children of the Poor. New York: C. Scribner's Sons, 1915.

MLA (9th ed.) Citation

Riis, Jacob A. The Children of the Poor. C. Scribner's Sons, 1915.