APA引文

Hefferan, E. K. (2025). Frommer's Yellowstone & Grand Teton National Parks (12th edition.). Frommer Media.

Chicago Style (17th ed.) Citation

Hefferan, Elisabeth Kwak. Frommer's Yellowstone & Grand Teton National Parks. 12th edition. [New York]: Frommer Media, 2025.

MLA引文

Hefferan, Elisabeth Kwak. Frommer's Yellowstone & Grand Teton National Parks. 12th edition. Frommer Media, 2025.

警告：這些引文格式不一定是100％准確.