Andry, A.C. and Schepp, S.: How Babies Are Made. New York, Time-Life Books, 1968.
2.
Bass, M., and Lang, J.: Sex Education for the Retarded and An Annotated Bibliography of Selected Resources . E. C. Brown Center for Family Studies, 1802 Moss Street, Eugene, Ore. 97403, 1972. 98 pages, $1.00 (mimeo).
3.
Blacklidge, V. : Sex Education for the Mentally Retarded. Sacramento, California Association for the Retarded , 1969.
4.
Gordon, S.: Facts About Sex. New York, The John Day Co., 1970.
5.
Pattullo, A.: Puberty in the Girl Who is Retarded. Arlington, Tex., National Association for Retarded Children, 1969.
6.
Steichen, E.: The Family of Man. New York, The Museum of Modern Art, 1955.