H. N. Semjon, Unity in Difference
Edited by Jan Maruhn, with contributions by Barbara Straka, Scott Budzynski, Ursula Prinz, Gerhard Charles Rump, Sebastian Preuss and H. N. Semjon
German/englisch, 64 pages, 46 color, 30 black and white figures
Vice Versa Verlag, Berlin 1999; ISBN 3-932809-08-4; 32,- DM

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