United States. War Department. Corps of Engineers. (1823). Account of expedition from Pittsburgh to Rocky Mountains, performed in years 1819 and '20, by order of J. C. Calhoun, Secretary of War, under command of Major Stephen H. Long, from notes of Major Long, Mr. T. Say, and other gentlemen of exploring party; in 2 volumes, with atlas: Vol. I. Philadelphia: H.C. Carey amp; I. Lea.
Chicago Style (17th ed.) CitationUnited States. War Department. Corps of Engineers. Account of Expedition from Pittsburgh to Rocky Mountains, Performed in Years 1819 and '20, by Order of J. C. Calhoun, Secretary of War, Under Command of Major Stephen H. Long, from Notes of Major Long, Mr. T. Say, and Other Gentlemen of Exploring Party; in 2 Volumes, with Atlas: Vol. I. [Washington]: Philadelphia: H.C. Carey amp; I. Lea, 1823.
MLA (9th ed.) CitationUnited States. War Department. Corps of Engineers. Account of Expedition from Pittsburgh to Rocky Mountains, Performed in Years 1819 and '20, by Order of J. C. Calhoun, Secretary of War, Under Command of Major Stephen H. Long, from Notes of Major Long, Mr. T. Say, and Other Gentlemen of Exploring Party; in 2 Volumes, with Atlas: Vol. I. Philadelphia: H.C. Carey amp; I. Lea, 1823.