APA引文

Popejoy, D. (2016). Lewis and Clark and the Oregon Trail: Where the Oregon Trail meets the Columbia River. [Publisher not identified].

Chicago Style (17th ed.) Citation

Popejoy, Don. Lewis and Clark and the Oregon Trail: Where the Oregon Trail Meets the Columbia River. [Spokane, Wash.]: [Publisher not identified], 2016.

MLA引文

Popejoy, Don. Lewis and Clark and the Oregon Trail: Where the Oregon Trail Meets the Columbia River. [Publisher not identified], 2016.

警告：這些引文格式不一定是100％准確.