United Cerebral Palsy Associations, New York: “Meeting the Challenge of C.P.”. 1960.
3.
R. S. Illingworth and others: “Recent Advances in Cerebral Palsy”. 1958.
4.
H. Kessler and others: “Principles and Practice of Rehabilitation”.
5.
IllingworthR. S.: “The Development of the Infant and Young Child, Normal and Abnormal”. 1960.
6.
Parents' Handbook: 1958. Some Facts about Cerebral Palsy; 1959. Outside the Treatment Room; 1961. Cerebral Palsy Equipment Leaflets. “Spastics News”, a magazine issued quarterly, etc.
7.
PalsyCerebral: Dr. Perlstein answers questions parents ask.1961.
8.
Columbia University Post-Graduate Cerebral Palsy Course; Spring, 1959.
9.
“Home for the Day”. 21st October, 1962.
10.
SkatvedtMaria: “Non-motor Defects in Cerebral Palsy”. Published in “Child Neurology and Cerebral Palsy”. 1960.