Birth, stillbirth, and infant mortality statistics for the birth registration area of the United States; annual report.

MLA

United States. Birth, stillbirth, and infant mortality statistics for the birth registration area of the United States; annual report. Washington : U.S. Govt. Print. Off.

APA

United States. (1922). Birth, stillbirth, and infant mortality statistics for the birth registration area of the United States; annual report. Washington : U.S. Govt. Print. Off.

Chicago

United States. Birth, stillbirth, and infant mortality statistics for the birth registration area of the United States; annual report. Washington : U.S. Govt. Print. Off.