Morgenthaler, Fritz, 1919- Homosexuality, heterosexuality, perversion / [electronic resource] / Fritz Morgenthaler ; with an introduction by Werner Muensterberger ; translated from the German by Andreas Aebi ; edited by Paul Moor.. — Hillsdale, NJ : : Analytic Press : : Distributed by Lawrence Erlbaum,, 1988.. — xii, 148 p. ; 24 cm.