MLA

Vojacek, Jan Dominik, and Pavel Zacek. Aortic Regurgitation. Springer International Publishing, 2018.

APA

Vojacek, V., Dominik, J., & Zacek, P. (2018). Aortic Regurgitation. Springer International Publishing.

Chicago

Vojacek, Jan Dominik, and Pavel Zacek. Aortic Regurgitation. : Springer International Publishing, 2018.