APA

Symposium on the Cost of Prevention Major Mental Handicap (1977 nov. 7 - 8 Ciba Foundation L., . (1978). Major mental handicap. New York: Excerpta Médica.

Chicago

Symposium on the Cost of Prevention Major Mental Handicap (1977 nov. 7 - 8 Ciba Foundation London), . 1978. Major mental handicap. New York: Excerpta Médica.

Harvard

Symposium on the Cost of Prevention Major Mental Handicap (1977 nov. 7 - 8 Ciba Foundation L., . (1978). Major mental handicap. New York: Excerpta Médica.

MLA

Symposium on the Cost of Prevention Major Mental Handicap (1977 nov. 7 - 8 Ciba Foundation London), . Major mental handicap. New York: Excerpta Médica. 1978.