New horizons in microbiology proceedings of the European Symposium on New Horizons in Microbiology held at the Facolta di medicina e chirurgia A. Gemelli, Universita cattolica del Sacro Cuore, Rome, Italy, on April 26-28, 1984 - Morace, Giulia; Sanna, Antonio, 1917- (Elsevier Science Publishers, 1984)