Home › Authors › International Symposium on Enterobacterial Vaccines (1969 Bern) 👤 International Symposium on Enterobacterial Vaccines (1969 Bern) 1 book Books by International Symposium on Enterobacterial Vaccines (1969 Bern) Proceedings of the 27th sympos Proceedings of the 27th symposium organized by the Permanent Section of Microbiological Standardization 1971