APA (7th ed.) Citation

Dell, B. N., & Luthringer, G. F. (1938). Population, resources and trade. Little, Brown and company.

Chicago Style (17th ed.) Citation

Dell, Burnham North, and George Francis Luthringer. Population, Resources and Trade. [Place of publication not identified]: Little, Brown and company, 1938.

MLA (9th ed.) Citation

Dell, Burnham North, and George Francis Luthringer. Population, Resources and Trade. Little, Brown and company, 1938.