American Child Health Association, New York (N.Y.). Dept. of Health, New York (N.Y.). Board of Education, & Metropolitan Life Insurance Company. (1934). Physical defects: The pathway to correction. A study of physical defects among school children in New York city. American child health association.
Chicago-referens (17:e uppl.)American Child Health Association, New York (N.Y.). Dept. of Health, New York (N.Y.). Board of Education, och Metropolitan Life Insurance Company. Physical Defects: The Pathway to Correction. A Study of Physical Defects Among School Children in New York City. New York, N. Y.: American child health association, 1934.
MLA-referens (8:e uppl.)American Child Health Association, et al. Physical Defects: The Pathway to Correction. A Study of Physical Defects Among School Children in New York City. American child health association, 1934.