Gupta, L., & L.C. Gupta, U. S. Diagnostic Ultrasound. Jaypee.
Chicago Style aipamenaGupta, L.C, and U.C. Sahu L.C. Gupta. Diagnostic Ultrasound. New Delhi: Jaypee.
MLA aipamenaGupta, L.C, and U.C. Sahu L.C. Gupta. Diagnostic Ultrasound. Jaypee.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.