Nordling, D. (1998). Trade-offs between life history traits and immune defence in the collared flycatcher, Ficedula albicollis. [Uppsala University] : Distributor, Uppsala University Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nordling, Dag. Trade-offs Between Life History Traits and Immune Defence in the Collared Flycatcher, Ficedula Albicollis. Uppsala: [Uppsala University] : Distributor, Uppsala University Library, 1998.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Nordling, Dag. Trade-offs Between Life History Traits and Immune Defence in the Collared Flycatcher, Ficedula Albicollis. [Uppsala University] : Distributor, Uppsala University Library, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.