Não informado. (2021). Annual Report of the Director of the Museum of Comparative Zoology at Harvard College. Harvard College, Museum of Comparative Zoology.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Annual Report of the Director of the Museum of Comparative Zoology at Harvard College. Cambridge, Mass: Harvard College, Museum of Comparative Zoology, 2021.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Annual Report of the Director of the Museum of Comparative Zoology at Harvard College. Harvard College, Museum of Comparative Zoology, 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.
