Catalogue Subject: Physical and natural sciences , antroposophy
MAURO BALLERO
RENATO BROTZU
GIOVANNA RAU
MAURO ARESU, RAIMONDO ALTANA
MARIO AGABBIO, ET AL.
ANTONELLO MANCONI
ALDO DOMENICO ATZEI, ET AL.
LUIGI ARRAS
SANDRO DE MURO, GIOVANNI DE FALCO