APA (7th ed.) Citation

United States. Bureau of the Census. (1939). Vital Statistics-Special Reports, Vol. 7, No. 31, Infant Mortality, 1915-1937. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of the Census. Vital Statistics-Special Reports, Vol. 7, No. 31, Infant Mortality, 1915-1937. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. Bureau of the Census. Vital Statistics-Special Reports, Vol. 7, No. 31, Infant Mortality, 1915-1937. [s.n.], 1939.