APA引文

Popejoy, D. (2019). Lewis and Clark and the Oregon Trail: Lewis and Clark's long journey home. [Publisher not identified].

Chicago Style (17th ed.) Citation

Popejoy, Don. Lewis and Clark and the Oregon Trail: Lewis and Clark's Long Journey Home. [Spokane, Wash.]: [Publisher not identified], 2019.

MLA引文

Popejoy, Don. Lewis and Clark and the Oregon Trail: Lewis and Clark's Long Journey Home. [Publisher not identified], 2019.

警告：這些引文格式不一定是100％准確.