APA Style

et.al., . et al (1967). Microbiology; a text emphasizing molecular and genetic aspects of microbiology and immunology, and the relations of bacteria, fungi, and viruses to human disease . New York: Hoeber Medical Division.

MLA Style

et.al., . et al. "Microbiology; a text emphasizing molecular and genetic aspects of microbiology and immunology, and the relations of bacteria, fungi, and viruses to human disease". New York: Hoeber Medical Division, 1967. .