APA (7th ed.) Citation

United States. Bureau of Standards. (1935). Standard time zones of United States and adjacent parts of Canada and Mexico, as of Oct. 1, 1935. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Standards. Standard Time Zones of United States and Adjacent Parts of Canada and Mexico, as of Oct. 1, 1935. [Washington]: [s.n.], 1935.

MLA (9th ed.) Citation

United States. Bureau of Standards. Standard Time Zones of United States and Adjacent Parts of Canada and Mexico, as of Oct. 1, 1935. [s.n.], 1935.