IBI. (1975). Bibliography of doctoral dissertations: Biological sciences. Interuniversity board of India.
استشهاد بنمط شيكاغوIBI. Bibliography of Doctoral Dissertations: Biological Sciences. New Delhi: Interuniversity board of India, 1975.
MLA استشهادIBI. Bibliography of Doctoral Dissertations: Biological Sciences. Interuniversity board of India, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.