Pacific Northwest Farm Trio. (1927). Agricultural charts: Washington, Idaho, Oregon. Pacific Northwest Farm Trio.
Style de citation Chicago (17e éd.)Pacific Northwest Farm Trio. Agricultural Charts: Washington, Idaho, Oregon. Spokane, Wash.: Pacific Northwest Farm Trio, 1927.
Style de citation MLA (8e éd.)Pacific Northwest Farm Trio. Agricultural Charts: Washington, Idaho, Oregon. Pacific Northwest Farm Trio, 1927.
Attention : ces citations peuvent ne pas être correctes à 100%.