Halkjaer, J., Olsen, A., Bjerregaard, L., Deharveng, G., Tjønneland, A., Welch, A., . . . Riboli, E. (2009). Intake of total, animal and plant proteins, and their food sources in 10 countries in the European Prospective Investigation into Cancer and Nutrition.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Halkjaer, J., et al. Intake of Total, Animal and Plant Proteins, and Their Food Sources in 10 Countries in the European Prospective Investigation into Cancer and Nutrition. 2009.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Halkjaer, J., et al. Intake of Total, Animal and Plant Proteins, and Their Food Sources in 10 Countries in the European Prospective Investigation into Cancer and Nutrition. 2009.
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