Dyfyniad APA

Metcalfe, D. D., Sampson, H. A., & Simon, R. A. (2008). Food Allergy: Adverse Reactions to Foods and Food Additives (Fourth edition.). Blackwell Publishing.

Dyfyniad Arddull Chicago

Metcalfe, Dean D., Hugh A. Sampson, and Ronald A. Simon. Food Allergy: Adverse Reactions to Foods and Food Additives. Fourth edition. Malden, Mass., USA: Blackwell Publishing, 2008.

Dyfyniad MLA

Metcalfe, Dean D., et al. Food Allergy: Adverse Reactions to Foods and Food Additives. Fourth edition. Blackwell Publishing, 2008.

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