Cita APA

Marks, J. S., & Lawler, W. (1975). Letter: Duodenal obstruction due to abdominal aortic aneurysm.

Chicago Style Citation

Marks, J S., i W. Lawler. Letter: Duodenal Obstruction Due to Abdominal Aortic Aneurysm. 1975.

Cita MLA

Marks, J S., i W. Lawler. Letter: Duodenal Obstruction Due to Abdominal Aortic Aneurysm. 1975.

Atenció: Aquestes cites poden no estar 100% correctes.