Klein, R. E., Read, M. S., Riecken, H. W. 1., Brown, J. A., Pradilla, A., & Acciarri, G. (1979). Evaluating the impact of nutrition and health programs. New York, United States of America: Plenum.

Klein, Robert E., Merrill S. Read, Henry W. 1917-2012 Riecken, James A. Brown, Alberto Pradilla, and Giovanni Acciarri. Evaluating the Impact of Nutrition and Health Programs. New York, United States of America: Plenum, 1979.

Klein, Robert E., et al. Evaluating the Impact of Nutrition and Health Programs. New York, United States of America: Plenum, 1979.