APA Style

et.al., ., Greenwood, D. (2012). Medical microbiology : a guide to microbial infections : pathogenesis, immunity, laboratory investigation and control (18th). Edinburgh: Churchill Livingstone.

MLA Style

et.al., ., Greenwood, David. "Medical microbiology : a guide to microbial infections : pathogenesis, immunity, laboratory investigation and control". 18th Edinburgh: Churchill Livingstone, 2012. .