Friesecke, H. (1980). Vitamin B12 in animal nutrition. Roche.
Chicago Style (17th ed.) CitationFriesecke, Henning. Vitamin B12 in Animal Nutrition. [Basel, Switzerland] ; [Nutley, N.J.]: Roche, 1980.
MLA (9th ed.) CitationFriesecke, Henning. Vitamin B12 in Animal Nutrition. Roche, 1980.
Warning: These citations may not always be 100% accurate.