Cita APA (7a ed.)

Mangold, G. B. (1936). Problems of child welfare (3rd ed.). Macmillan.

Cita Chicago Style (17a ed.)

Mangold, George Benjamin. Problems of Child Welfare. 3rd ed. New York: Macmillan, 1936.

Cita MLA (9a ed.)

Mangold, George Benjamin. Problems of Child Welfare. 3rd ed. Macmillan, 1936.