Bortoft, J. (Jacqueline) The biology and energetics of nutrition by J. Bortoft - London University of London Press Ltd. 1969 - 96 p. : ill. ; 25 cm. - Structural communication topics 3 . ISBN: 0340079738 LCCN: 72-450034 Subjects--Topical Terms: biological chemistry Programmed instructionNutrition--Programmed instruction