Gass, P., Jordan, J., Jr., & Henry, W. (1807). A journal of the voyages and travels of a corps of discovery, under the command of Capt. Lewis and Capt. Clarke: From the mouth of the river Missouri through the interior parts of North America to the Pacific ocean, during the years 1804, 1805 & 1806. Pittsburgh: Printed by Zadok Cramer, for David M'Keehan, publisher and proprietor.

Gass, Patrick, John Jordan, Jr, and William Henry. A Journal of the Voyages and Travels of a Corps of Discovery, Under the Command of Capt. Lewis and Capt. Clarke: From the Mouth of the River Missouri Through the Interior Parts of North America to the Pacific Ocean, During the Years 1804, 1805 & 1806. Pittsburgh: Printed by Zadok Cramer, for David M'Keehan, publisher and proprietor, 1807.

Gass, Patrick, John Jordan, Jr, and William Henry. A Journal of the Voyages and Travels of a Corps of Discovery, Under the Command of Capt. Lewis and Capt. Clarke: From the Mouth of the River Missouri Through the Interior Parts of North America to the Pacific Ocean, During the Years 1804, 1805 & 1806. Pittsburgh: Printed by Zadok Cramer, for David M'Keehan, publisher and proprietor, 1807.