Engen, C. N., Årøen, A., & Engebretsen, L. (2017). Development of a pilot cartilage surgery register. BMC Musculoskelet Disord.
استشهاد بنمط شيكاغوEngen, Cathrine Nørstad, Asbjørn Årøen, و Lars Engebretsen. "Development of a Pilot Cartilage Surgery Register." BMC Musculoskelet Disord 2017.
MLA استشهادEngen, Cathrine Nørstad, Asbjørn Årøen, و Lars Engebretsen. "Development of a Pilot Cartilage Surgery Register." BMC Musculoskelet Disord 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.