Speck, U. (2020). X-Ray Contrast Media. Springer Berlin Heidelberg.
Trích dẫn kiểu ChicagoSpeck, Ulrich. X-Ray Contrast Media. Springer Berlin Heidelberg, 2020.
MLA引文Speck, Ulrich. X-Ray Contrast Media. Springer Berlin Heidelberg, 2020.
警告：这些引文格式不一定是100％准确.