APA

Liebe S., . (2009). Continuing education in gastroenterology: Endoscopy practice on video. [s.l.]: Falk foundation.

Chicago

Liebe S, . 2009. Continuing education in gastroenterology: Endoscopy practice on video. [s.l.]: Falk foundation.

Harvard

Liebe S., . (2009). Continuing education in gastroenterology: Endoscopy practice on video. [s.l.]: Falk foundation.

MLA

Liebe S, . Continuing education in gastroenterology: Endoscopy practice on video. [s.l.]: Falk foundation. 2009.