A családkutatás és ikerkutatás módszertani elemei. Három előadás (Methodological elements of family research and twin research. Three lecture)
Kalocsa: 1935. First edition. In original paper. 54+(2) p. More
Kalocsa: 1935. First edition. In original paper. 54+(2) p. More
Budapest: Mérnökök, 1940. In original paper. 36 p. With: Lectures on experimental instinct diagnostics. 1-2. volume. Typewritten manuscript . 1943, 431 p. (a few appendix missing). In contemporary cloth. Both are very rare. More