Popejoy, D. (2016). Lewis and Clark and the Oregon Trail: Where the Oregon Trail meets the Columbia River. [Publisher not identified].
Цитирование в стиле Чикаго (17-е изд.)Popejoy, Don. Lewis and Clark and the Oregon Trail: Where the Oregon Trail Meets the Columbia River. [Spokane, Wash.]: [Publisher not identified], 2016.
Цитирование MLA (8-е изд.)Popejoy, Don. Lewis and Clark and the Oregon Trail: Where the Oregon Trail Meets the Columbia River. [Publisher not identified], 2016.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.