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MLA

b. 1882 Sybil Laura Smith. "Vitamins In Food Materials." , online. Print

APA

b. 1882 Sybil Laura Smith, b. 1882 Sybil Laura Smith. (1929). Vitamins in food materials.

Chicago

b. 1882 Sybil Laura Smith "Vitamins in food materials" (0000): online.