APA (7 वां संस्करण) प्रशस्ति पत्र

Hulley, S. B. (2013). Designing clinical research (4th ed.). Wolters Kluwer/Lippincott Williams & Wilkins.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Hulley, Stephen B. Designing Clinical Research. 4th ed. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins, 2013.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Hulley, Stephen B. Designing Clinical Research. 4th ed. Wolters Kluwer/Lippincott Williams & Wilkins, 2013.