Williams, S. R. (1990). Essentials of nutration and diet therapy (5th ed.). Times Mirror.
Chicago Style (17. basım) AtıfWilliams, Sue Rodwells. Essentials of Nutration and Diet Therapy. 5th ed. St. Louis, Mo.: Times Mirror, 1990.
MLA (9th ed.) AtıfWilliams, Sue Rodwells. Essentials of Nutration and Diet Therapy. 5th ed. Times Mirror, 1990.
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