APA aipamena

Laufer, I., & Levine, M. S. (1992). Double contrast gastrointestinal radiology.

Chicago Style aipamena

Laufer, Igor, and Marc S. Levine. Double Contrast Gastrointestinal Radiology. 1992.

MLA aipamena

Laufer, Igor, and Marc S. Levine. Double Contrast Gastrointestinal Radiology. 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.