Human nutrition : readings from Scientific American / with introductions by Norman Kretchmer and William van B. Robertson. Scientific American. Kretchmer, Norman, 1923- Robertson, William van B. Nutrition. Nutrition Collected works. QP141 .H79 613.2 HUM Includes bibliographical references and index. San Francisco : W. H. Freeman, c1978. c1978. 1978 Text viii, 275 p. : eng