Bortoft, Jacqueline. The biology and energetics of nutrition / [by] J. Bortoft in association with the Centre for Structural Communication. - London : University of London P., 1969. - 96 p. illus. 25 cm. - Structural communication topics, 3 . ISBN: 0340079738 Subjects--Topical Terms: Biochemistry--Programmed instructionNutrition--Programmed instructionBiochemistry--programmed instructionNutrition--programmed instruction LC Class. No.: QU18