No author listed. “National Microbiological Laboratory Reporting Service - Bulletin 9. 22 April to 5 May 1977 - Whole Issue”. Communicable Diseases Intelligence 1 (May 5, 1977): 1–8. Accessed April 22, 2026. https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3274.