APA (7th ed.) Citation

Gilbreth, F., & Carey, E. G. (1950). Cheaper by the dozen. William Heinemann.

Chicago Style (17th ed.) Citation

Gilbreth, Frank, and Ernestine Gilbereth Carey. Cheaper by the Dozen. Melbourne: William Heinemann, 1950.

MLA (9th ed.) Citation

Gilbreth, Frank, and Ernestine Gilbereth Carey. Cheaper by the Dozen. William Heinemann, 1950.

Warning: These citations may not always be 100% accurate.