Cita APA (7th ed.)

Williams, S. R. (1990). Essentials of nutration and diet therapy (5th ed.). Times Mirror.

Cita Chicago (17th ed.)

Williams, Sue Rodwells. Essentials of Nutration and Diet Therapy. 5th ed. St. Louis, Mo.: Times Mirror, 1990.

Cita MLA (9th ed.)

Williams, Sue Rodwells. Essentials of Nutration and Diet Therapy. 5th ed. Times Mirror, 1990.