Gaya APA
Karrer, R. (1976).
Developmental psychophysiology of mental retardation : concepts and studies .
Illinois, USA:
Charles C. Thomas Publ..
Gaya MLA
Karrer, Rathe.
"Developmental psychophysiology of mental retardation : concepts and studies".
Illinois, USA:
Charles C. Thomas Publ.,
1976.
Text.