APA (7th ed.) Citation

R.L. Polk & Co. R. L. Polk & Co.'s Chelan, Douglas, Grant and Okanogan counties directory. R. L. Polk & Co..

Chicago Style (17th ed.) Citation

R.L. Polk & Co. R. L. Polk & Co.'s Chelan, Douglas, Grant and Okanogan Counties Directory. Seattle, Wash.: R. L. Polk & Co..

MLA (8th ed.) Citation

R.L. Polk & Co. R. L. Polk & Co.'s Chelan, Douglas, Grant and Okanogan Counties Directory. R. L. Polk & Co..

Warning: These citations may not always be 100% accurate.