Goddard, Henry Herbert, 1866-1957. Die familie Kallikak. - Langensalza, H. Beyer & söhne, 1914. - 73, [1] p. xiv pl. 25 cm. LCCN: e 22000428 Subjects--Topical Terms: People with mental disabilities.Heredity. LC Class. No.: HQ753 / .G713 1914