Leuprecht, C., Sokolsky, J. J., & Hughes, T. (2020). North American Strategic Defense in the 21st Century. Springer International Publishing.
Trích dẫn kiểu ChicagoLeuprecht, Christian, Joel J. Sokolsky, và Thomas Hughes. North American Strategic Defense in the 21st Century. Springer International Publishing, 2020.
MLA引文Leuprecht, Christian, Joel J. Sokolsky, và Thomas Hughes. North American Strategic Defense in the 21st Century. Springer International Publishing, 2020.
警告：这些引文格式不一定是100％准确.