APA (7th ed.) Citation

Billington, R. A. (1979). Westward to the Pacific: An overview of America's westward expansion. Jefferson National Expansion Historical Association.

Chicago Style (17th ed.) Citation

Billington, Ray Allen. Westward to the Pacific: An Overview of America's Westward Expansion. St. Louis, Mo.: Jefferson National Expansion Historical Association, 1979.

MLA (8th ed.) Citation

Billington, Ray Allen. Westward to the Pacific: An Overview of America's Westward Expansion. Jefferson National Expansion Historical Association, 1979.