APA (7th ed.) Citation
Percy, D. O. (1981). Living historical farms, the working museums. Accokeek Foundation.
Chicago Style (17th ed.) Citation
Percy, David O. Living Historical Farms, the Working Museums. [Accokeek, Md.]: Accokeek Foundation, 1981.
MLA (9th ed.) Citation
Percy, David O. Living Historical Farms, the Working Museums. Accokeek Foundation, 1981.
Warning: These citations may not always be 100% accurate.