APA (7th ed.) Citation

Clark, S. (1935). The first hundred years of the New England mutual life insurance company, 1835-1935. [New England mutual life insurance company].

Chicago Style (17th ed.) Citation

Clark, Sydney. The First Hundred Years of the New England Mutual Life Insurance Company, 1835-1935. [Boston]: [New England mutual life insurance company], 1935.

MLA (9th ed.) Citation

Clark, Sydney. The First Hundred Years of the New England Mutual Life Insurance Company, 1835-1935. [New England mutual life insurance company], 1935.