Laufer, I. (1979). Double contrast gastrointestinal radiology.
Chicago Style aipamenaLaufer, Igor. Double Contrast Gastrointestinal Radiology. 1979.
MLA aipamenaLaufer, Igor. Double Contrast Gastrointestinal Radiology. 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.