APA (7th ed.) Citation

Gass, P., & MacGregor, C. L. (1997). The journals of Patrick Gass: Member of the Lewis and Clark Expedition. Mountain Press Pub. Co..

Chicago Style (17th ed.) Citation

Gass, Patrick, and Carol Lynn MacGregor. The Journals of Patrick Gass: Member of the Lewis and Clark Expedition. Missoula, Mont.: Mountain Press Pub. Co., 1997.

MLA (8th ed.) Citation

Gass, Patrick, and Carol Lynn MacGregor. The Journals of Patrick Gass: Member of the Lewis and Clark Expedition. Mountain Press Pub. Co., 1997.

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