Gershman, G., Thomson, M., & Ament, M. E. (2012). Practical pediatric gastrointestinal endoscopy (2nd ed.). Wiley-Blackwell.
Chicago-čujuhus (17. p.)Gershman, George, Mike Thomson, juo Marvin Earl Ament. Practical Pediatric Gastrointestinal Endoscopy. 2nd ed. Chichester, West Sussex: Wiley-Blackwell, 2012.
MLA-čujuhus (9. p.)Gershman, George, et al. Practical Pediatric Gastrointestinal Endoscopy. 2nd ed. Wiley-Blackwell, 2012.
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