por Lemkau, Paul Victor, 1909 [autor].
por Lemkau, Paul Victor, 1909- [autor].
por Lemkau, Paul Victor, 1909- [autor] | Pascual Del Roncal, Federico [traductor] | Lemkau, Paul Victor, 1909-. Mental hygiene in public health.
por Rorschach, Hermann, 1884-1922 [autor] | Oberholzer, Emil, 1883- [editor] | Lemkau, Paul Victor, 1909- [editor] | Kronenberg, Bernard, 1911- [editor].