Gass, P., & MacGregor, C. L. (1997). The journals of Patrick Gass: Member of the Lewis and Clark Expedition. Mountain Press Pub. Co..
Style de citation Chicago (17e éd.)Gass, Patrick, et Carol Lynn MacGregor. The Journals of Patrick Gass: Member of the Lewis and Clark Expedition. Missoula, Mont.: Mountain Press Pub. Co., 1997.
Style de citation MLA (8e éd.)Gass, Patrick, et Carol Lynn MacGregor. The Journals of Patrick Gass: Member of the Lewis and Clark Expedition. Mountain Press Pub. Co., 1997.
Attention : ces citations peuvent ne pas être correctes à 100%.