Will L Tewalt. (1951). Improved milk goats: A guide for breeders, dairymen and exhibitors. New york.
استشهاد بنمط شيكاغوWill L Tewalt. Improved Milk Goats: A Guide for Breeders, Dairymen and Exhibitors. New york, 1951.
MLA استشهادWill L Tewalt. Improved Milk Goats: A Guide for Breeders, Dairymen and Exhibitors. New york, 1951.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.