Mens sans in corpore sano / Book / 14 x 21.9 cm / Amsterdam, 1944 (1979)
+L’Árt / Book / 15 x 21 cm / Amsterdam, 1945 (1982)
Homo socialis / Book / 14.8 x 20.9 cm / Amsterdam, 1945 (1981)
Gnothi se auton / Book / 14.6 x 20.9 cm / Amsterdam, 1945 (1979)
Lectura sub aqua / Book / 14.6 x 20.9 cm / Amsterdam, 1944 (1979)
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