APA (7th ed.) Citation

Hudson, H. P., & Hudson, M. E. (1968). Hudson's Washington news media contacts directory. [Hudson's Directory].

Chicago Style (17th ed.) Citation

Hudson, Howard Penn, and Mary Elizabeth Hudson. Hudson's Washington News Media Contacts Directory. [Washington, D.C.]: [Hudson's Directory], 1968.

MLA (9th ed.) Citation

Hudson, Howard Penn, and Mary Elizabeth Hudson. Hudson's Washington News Media Contacts Directory. [Hudson's Directory], 1968.