APA (7th ed.) Citation

Leathwood, P., Horisberger, M., & James, W. P. T. (1993). For a better nutrition in the 21st century. Lippincott-Raven.

Chicago Style (17th ed.) Citation

Leathwood, Peter, Marc Horisberger, and W. P. T. James. For a Better Nutrition in the 21st Century. New York: Lippincott-Raven, 1993.

MLA (8th ed.) Citation

Leathwood, Peter, et al. For a Better Nutrition in the 21st Century. Lippincott-Raven, 1993.