APA
Penrose L. S., . (1969). The Biology of Mental Defect. : Elbs And Sidgwick And Jockson.
Chicago
Penrose Lionel S, . 1969. The Biology of Mental Defect. : Elbs And Sidgwick And Jockson.
Harvard
Penrose L. S., . (1969). The Biology of Mental Defect. : Elbs And Sidgwick And Jockson.
MLA
Penrose Lionel S, . The Biology of Mental Defect. : Elbs And Sidgwick And Jockson. 1969.
