APA (7th ed.) Citation

Clark, C. C., & Hall, R. H. (1940). This living world: A college course in science. McGraw-Hill book company, inc..

Chicago Style (17th ed.) Citation

Clark, Clarence C., and Robert Henry Hall. This Living World: A College Course in Science. New York, London: McGraw-Hill book company, inc., 1940.

MLA (9th ed.) Citation

Clark, Clarence C., and Robert Henry Hall. This Living World: A College Course in Science. McGraw-Hill book company, inc., 1940.