00423nam a22001097a 4500100002300000245012400023260007200147300001000219650004100229700002000270700002300290  aSavitz, Roberta A.  aVision screening of the preschool child :breport of a study /cRoberta A. Savitz, Robert B. Reed and Isabelle Valadian  aWashington, DC :bUS Dept. of Health, Education and Welfare,c1964.  a70 p.  aVision screeningvPreschool children  aReed, Robert B.  aValadian, Isabelle