APA (7th ed.) Citation

Orange County (Calif.). Board of Supervisors. (1971). The official map of Orange County, California and portions of adjoining counties: Compiled from official and private surveys (Sept. 1971 rev.). [Orange County Board of Supervisors?].

Chicago Style (17th ed.) Citation

Orange County (Calif.). Board of Supervisors. The Official Map of Orange County, California and Portions of Adjoining Counties: Compiled from Official and Private Surveys. Sept. 1971 rev. [Place of publication not identified]: [Orange County Board of Supervisors?], 1971.

MLA (9th ed.) Citation

Orange County (Calif.). Board of Supervisors. The Official Map of Orange County, California and Portions of Adjoining Counties: Compiled from Official and Private Surveys. Sept. 1971 rev. [Orange County Board of Supervisors?], 1971.