APA (7th ed.) Citation

United States. Children's Bureau. (1945). Now your baby is one year old. [s.n.].

Chicago Style (17th ed.) Citation

United States. Children's Bureau. Now Your Baby Is One Year Old. [Washington]: [s.n.], 1945.

MLA (9th ed.) Citation

United States. Children's Bureau. Now Your Baby Is One Year Old. [s.n.], 1945.