lennart soderquist. (1991). Sperm characteristics and fertility in dairy a I bulls. Swedish university of agricultural sciences.
استشهاد بنمط شيكاغوlennart soderquist. Sperm Characteristics and Fertility in Dairy a I Bulls. Swedish university of agricultural sciences, 1991.
MLA استشهادlennart soderquist. Sperm Characteristics and Fertility in Dairy a I Bulls. Swedish university of agricultural sciences, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.