Michigan. Dairy and Food Dept. Clean cows, clean stables & clean milk. Michigan Dairy & Food Dept..
Chicago-referens (17:e uppl.)Michigan. Dairy and Food Dept. Clean Cows, Clean Stables & Clean Milk. [Lansing]: Michigan Dairy & Food Dept..
MLA-referens (8:e uppl.)Michigan. Dairy and Food Dept. Clean Cows, Clean Stables & Clean Milk. Michigan Dairy & Food Dept..
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.