APA (7th ed.) Citation

U.S. Fish and Wildlife Service. (1940). An Improved Method for Revealing the Surface Structure of Fur Fibers. [s.n.].

Chicago Style (17th ed.) Citation

U.S. Fish and Wildlife Service. An Improved Method for Revealing the Surface Structure of Fur Fibers. [Washington]: [s.n.], 1940.

MLA (9th ed.) Citation

U.S. Fish and Wildlife Service. An Improved Method for Revealing the Surface Structure of Fur Fibers. [s.n.], 1940.