APA (7th ed.) Citation

Pacific Northwest Farm Trio. (1927). Agricultural charts: Washington, Idaho, Oregon. Pacific Northwest Farm Trio.

Chicago Style (17th ed.) Citation

Pacific Northwest Farm Trio. Agricultural Charts: Washington, Idaho, Oregon. Spokane, Wash.: Pacific Northwest Farm Trio, 1927.

MLA (8th ed.) Citation

Pacific Northwest Farm Trio. Agricultural Charts: Washington, Idaho, Oregon. Pacific Northwest Farm Trio, 1927.

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