APA (7th ed.) Citation

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.

Chicago Style (17th ed.) Citation

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.

MLA (9th ed.) Citation

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.

Warning: These citations may not always be 100% accurate.