Kay, R. F. (2000). Diet. In E. Delson, I. Tattersall, J. A. VanCouvering, & A. Brooks (Eds.), Encyclopedia of Evolution and Prehistory, 2nd Edition (pp. 208–212). New York: Garland Pub. Co.

Kay, R. F. “Diet.” In Encyclopedia of Evolution and Prehistory, 2nd Edition, edited by E. Delson, I. Tattersall, J. A. VanCouvering, and A. Brooks, 208–12. New York: Garland Pub. Co., 2000.

Kay RF. Diet. In: Delson E, Tattersall I, VanCouvering JA, Brooks A, editors. Encyclopedia of Evolution and Prehistory, 2nd Edition. New York: Garland Pub. Co.; 2000. p. 208–12.

Kay, R. F. “Diet.” Encyclopedia of Evolution and Prehistory, 2nd Edition, edited by E. Delson et al., Garland Pub. Co., 2000, pp. 208–12.

Kay RF. Diet. In: Delson E, Tattersall I, VanCouvering JA, Brooks A, editors. Encyclopedia of Evolution and Prehistory, 2nd Edition. New York: Garland Pub. Co.; 2000. p. 208–212.