Ritchie, Jean A.S. Learning better nutrition : a second study of approaches and techniques / Jean A. S. Ritchie - Rome : FAO , 1967 - xii, 264p. : ill. ; 22 cm. - FAO nutritional studies . Includes bibliographical references. Subjects--Topical Terms: NutritionStudy and teaching Dewey Class. No.: 641.1 / RIT