APA (7 वां संस्करण) प्रशस्ति पत्र
Riddell, R., Jain, D., Bernstein, C. N., Guha, S., Shaw, R., Marshall, K., . . . Druding, S. (2014). Lewin, Weinstein, and Riddell's gastrointestinal pathology and its clinical implications (Second edition.). Wolters Kluwer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Riddell, Robert, Dhanpat Jain, Charles N. Bernstein, Sushovan Guha, Ryan Shaw, Kate Marshall, Marian Bellus, और Stephen Druding. Lewin, Weinstein, and Riddell's Gastrointestinal Pathology and Its Clinical Implications. Second edition. Philadelphia, Pennsylvania: Wolters Kluwer, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Riddell, Robert, et al. Lewin, Weinstein, and Riddell's Gastrointestinal Pathology and Its Clinical Implications. Second edition. Wolters Kluwer, 2014.
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