APA引文

Ringo, J., & Massa, M. (2018). The valley of shadows. Baen.

Chicago Style (17th ed.) Citation

Ringo, John, and Mike Massa. The Valley of Shadows. Riverdale, NY: Baen, 2018.

MLA引文

Ringo, John, and Mike Massa. The Valley of Shadows. Baen, 2018.

警告：這些引文格式不一定是100％准確.