APA引文

White, W. B. (2020). Caves and Karst of the Greenbrier Valley in West Virginia. 1st ed. 2018. Springer International Publishing.

Trích dẫn kiểu Chicago

White, William B. Caves and Karst of the Greenbrier Valley in West Virginia. 1st Ed. 2018. Springer International Publishing, 2020.

MLA引文

White, William B. Caves and Karst of the Greenbrier Valley in West Virginia. 1st Ed. 2018. Springer International Publishing, 2020.

警告：這些引文格式不一定是100％准確.