APA (7 वां संस्करण) प्रशस्ति पत्र

Tillett, W., Orbai, A., Ogdie, A., Leung, Y., Strand, V., Gladman, D., . . . Coates, L. (2017). GRAPPA-OMERACT initiative to standardise outcomes in psoriatic arthritis clinical trials and longitudinal observational studies. BMJ Publishing Group.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Tillett, W., A. Orbai, A. Ogdie, Y. Leung, V. Strand, D. Gladman, P. Mease, और L. Coates. GRAPPA-OMERACT Initiative to Standardise Outcomes in Psoriatic Arthritis Clinical Trials and Longitudinal Observational Studies. BMJ Publishing Group, 2017.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Tillett, W., et al. GRAPPA-OMERACT Initiative to Standardise Outcomes in Psoriatic Arthritis Clinical Trials and Longitudinal Observational Studies. BMJ Publishing Group, 2017.